Effect of Computers in Education Essay Example

Effect of Computers in Education Essay Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: What do we get from cereals, pulses, fruits and vegetables Answer: (i) Cereals provide us with carbohydrates. Also, they are a rich source of energy. (ii) Pulses give us proteins. (iii) Fruits and vegetables are a rich source of vitamins and minerals. A small amount of proteins, carbohydrates, and fats are also present in them. We will write a custom essay sample on Effect of Computers in Education specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Effect of Computers in Education specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Effect of Computers in Education specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Page 1 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: How do biotic and abiotic factors affect crop production Answer: A variety of biotic factors such as pests, nematodes, diseases, etc. can reduce the net crop production. A pest causes damage to agriculture by feeding on crops. For example, boll weevil is a pest on cotton. It attacks the cotton crop, thereby reducing its yield. Weeds also reduce crop productivity by competing with the main crop for nutrients, light, and space. Similarly, abiotic factors such as salinity, temperature, etc. affect the net crop production. Some natural calamities such as droughts and floods are unpredictable. Their occurrence has a great impact on crops sometimes, destroying the entire crop. Question 2: What are the desirable agronomic characteristics for crop improvements Answer: The desirable agronomic characteristics for crop improvements are: (i) Tallness and profuse branching in any fodder crop. (ii) Dwarfness in cereals. These desirable agronomic characteristics help in increasing crop productivity. Page 2 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: What are macro-nutrients and why are they called macro-nutrients Answer: Macro-nutrientsare nutrients required in relatively large quantities for growth and development of plants. They are six in number. Since they are required in large quantities, they are known as macro-nutrient. The six macro-nutrients required by plants are nitrogen, phosphorus, potassium, calcium, magnesium, and sulphur. Question 2: How do plants get nutrients Answer: Plants require sixteen essential nutrients from nature for their growth and development. All these nutrients are obtained from air, water, and soil. Soil is the major source of nutrients. Thirteen of these nutrients are available from soil. The remaining three nutrients (carbon, oxygen, and hydrogen) are obtained from air and water. Page 3 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Compare the use of manure and fertilizers in maintaining soil fertility. Answer: Manures increase soil fertility by enriching the soil with organic matter and nutrients as it is prepared by the decomposition of animal excreta and plant wastes. On the other hand, fertilizers are mostly inorganic compounds whose excessive use is harmful to the symbiotic micro-organisms living in soil. Their excessive use also reduces soil fertility. Hence, fertilizers are considered good for only short term use. Page 4 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Which of the following conditions will give the most benefits Why (a) Farmers use high-quality seeds, do not adopt irrigation or use fertilizers. (b) Farmers use ordinary seeds, adopt irrigation and use fertilizer. (c) Farmers use quality seeds, adopt irrigation, use fertilizer and use crop protection measures. Answer: (c)Farmers using good quality seeds, adopting irrigation, using fertilizers, and using crop protection measures will derive most benefits. (i) The use of good quality seeds increases the total crop production. If a farmer is using good quality seeds, then a majority of the seeds will germinate properly, and will grow into a healthy plant. (ii) Proper irrigation methods improve the water availability to crops. (iii) Fertilizers ensure healthy growth and development in plants by providing the essential nutrients such as nitrogen, phosphorus, potassium, etc. (iv) Crop protection measures include various methods to control weeds, pests, and infectious agents. I f all these necessary measures are taken by a farmer, then the overall production of crops will increase. Page 5 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Why should preventive measures and biological control methods be preferred for protecting crops Answer: Preventive measures and biological control methods should be preferred for protecting crops because excessive use of chemicals leads to environmental problems. These chemicals are also poisonous for plants and animals. Preventive measures include proper soil and seed preparation, timely sowing of seeds, intercropping and mixed cropping, usage of resistant varieties of crops, etc. On the other hand, biological control methods include the usage of bio-pesticides that are less toxic for the environment. An example of bio-pesticides is Bacillus thuringenesis,which is an insect pathogen that kills a wide range of insect larvae. Therefore, both preventive measures and biological control methods are considered eco- friendly methods of crop protection. Question 2: What factors may be responsible for losses of grains during storage Answer: During the storage of grains, various biotic factors such as insects, rodents, mites, fungi, bacteria, etc. and various abiotic factors such as inappropriate moisture, temperature, lack of sunlight, flood, etc. are responsible for losses of grains. These factors act on stored grains and result in degradation, poor germinability, discolouration, etc. Page 6 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Which method is commonly used for improving cattle breeds and why Answer: Cattle farming is commonly used for improving cattle breeds. The purpose of cattle farming is to increase the production of milk and draught labour for agricultural work. Dairy animals (females) are used for obtaining milk and draught animals (males) are engaged in agricultural fields for labour work such as carting, irrigation, tilling, etc. Cross breeding between two good varieties of cattle will produce a new improved variety. For example, the cross between foreign breeds such as Jersey Brown, Swiss (having long lactation periods) and Indian breeds such as Red Sindhi, Sahiwal (having excellent resistance power against diseases) produces a new variety having qualities of both breeds. Page 7 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Discuss the implications of the following statement: It is interesting to note that poultry is Indiaâ„ ¢s most efficient converter of low fibre food stuff (which is unfit for human consumption) into highly nutritious animal protein food. Answer: Poultry in India is the most efficient converter of low fibre food stuff into highly nutritious animal protein food. In poultry farming, domestic fowls are raised to produce eggs and chicken. For this, the fowls are given animal feeds in the form of roughage, which mainly consists of fibres. Thus, by feeding animals a fibre rich diet, the poultry gives highly nutritious food in the form of eggs and chicken. Page 8 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: What management practices are common in dairy and poultry farming Answer: Common management practices in dairy and poultry farming are: (i) Proper shelter facilities and their regular cleaning. (ii) Some basic hygienic conditions such as clean water, nutritious food, etc. (iii) Animals are kept in spacious, airy, and ventilated place. (iv) Prevention and cure of diseases at the right time is ensured. Question 2: What are the differences between broilers and layers and in their management Answer: Layersare meant for egg production, whereas broilers are meant for poultry meat. Nutritional, environmental, and housing conditions required by broilers are different from those required by egg layers. A broiler chicken, for their proper growth, requires vitamin rich supplements especially vitamin A and K. Also, their diet includes protein rich food and enough fat. They also require extra care and maintenance to increase their survival rate in comparison to egg layers. Page 9 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: How are fish obtained Answer: Fish can be obtained by two ways: (i) Capture fishing: It is the process of obtaining fish from natural resources. (ii) Culture fishery: It is the practice of farming fishes. Farming can be done in both freshwater ecosystem (which includes river water, pond water) and marine ecosystem. Question 2: What are the advantages of composite fish culture Answer: An advantage of composite fish culture is that it increases the yield of fish. In a composite fish culture, five or six different species are grown together in a single fish pond. Fishes with different food habitats are chosen so that they do not compete for food among themselves. Also, this ensures a complete utilization of food resources in the pond. As a result, the survival rate of fish increases and their yield also increases. Page 10 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: What are the desirable characters of bee varieties suitable for honey production Answer: Bee varieties having the following desirable characters are suitable for honey production: (i) They should yield high quantity of honey. (ii) They should not sting much. (iii) They should stay in the beehive for long durations. (iv) They should breed very well. Question 2: What is pasturage and how is it related to honey production Answer: Pasturage is the availability of flowers from which bees collect nectar and pollen. It is related to the production of honey as it determines the taste and quantity of honey. Page 11 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 1: Explain any one method of crop production which ensures high yield. Answer: Crop rotationis one of the methods of crop production that ensures high yield. It is the method of growing two or more varieties of crops on the same land in sequential seasons. A crop utilises some particular nutrients in larger quantities from the soil. Then, if the same crop is grown in subsequent seasons those nutrients will get depleted in the soil. Therefore, crops having different nutrient requirements are rotated. For example, legumes which have nitrogen-fixing bacteria in their root nodules supply the soil with nitrogen. Therefore, these legumes are rotated with nitrogen requiring cereals such as wheat and maize. This method reduces the need of fertilizers, thereby increasing the overall yield of crops. Question 2: Why are manures and fertilizers used in fields Answer: Manures and fertilizers are used in fields to enrich the soil with the required nutrients. Manure helps in enriching the soil with organic matter and nutrients. This improves the fertility and structure of the soil. On the other hand, fertilizers ensure a healthy growth and development in plants. They are a good source of nitrogen, phosphorus, and potassium. To get an optimum yield, it is instructed to use a balanced combination of manures and fertilizers in the soil. Question 3: What are the advantages of inter-cropping and crop rotation Answer: Inter-cropping and crop rotation both play an important role in increasing the yield of crops. Inter-cropping helps in preventing pests and diseases to spread throughout the field. It also increases soil fertility, whereas crop rotation prevents soil depletion, increases soil fertility, and reduces soil erosion. Both these methods reduce the need for fertilizers. It also helps in controlling weeds and controls the growth of pathogens and pests in crops. Page 12 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 4: What is genetic manipulation How is it useful in agricultural practices Answer: Genetic manipulationis a process where the gene for a particular character is introduced inside the chromosome of a cell. When the gene for a particular character is introduced in a plant cell, a transgenic plant is produced. These transgenic plants exhibit characters governed by the newly introduced gene. For example, let us assume there is a wild plant that produces small fruits. If the gene responsible for a larger fruit size is introduced in this plant, this plant becomes transgenic, and starts producing larger fruits. Similarly, genes for higher yield, disease resistance, etc. can be introduced in any desired plant. Therefore, gene manipulation plays an important role in agricultural practices. It helps in improving crop variety. It ensures food security and insect resistant crops. It also improves the quality and yield of crops. Question 6: How do good animal husbandry practices benefit farmers Answer: Cattle farming is one of the methods of animal husbandry that is most beneficial for farmers. Using this method, better breeds of draught animals can be produced. Such draught animals are engaged in agricultural fields for labour work such as carting, irrigation, tilling, etc. Question 7: What are the benefits of cattle farming Answer: Benefits of cattle farming: (i) Good quality and quantity of milk can be produced. (ii) Draught labour animals can be produced for agricultural work. (iii) New variety that are resistant to diseases can be produced by crossing two varieties with the desired traits. Page 13 of 14 Class IX Chapter 15 â€Å" Improvement in Food Resources Science Question 8: For increasing production, what is common in poultry, fisheries and bee-keeping Answer: The common factor for increasing production in poultry, fisheries, and bee keeping is the proper management techniques that are to be followed. Regular cleaning of farms is of utmost importance. Maintenance of temperature and prevention and cure of diseases is also required to increase the number of animals. Question 9: How do you differentiate between capture fishing, mariculture and aquaculture Answer: Capture fishing It is the method of obtaining fishes from natural resources. Mariculture It is the culture of marine fishes for Aquaculture It involves the production of aquatic animals that are of high economic value such as prawns, lobsters, commercial use. fishes, crabs, etc. Page 14 of 14

Text Telephone essays

Text Telephone essays The TTY, or Text Telephone is widely known among the deaf and hearing impaired community. Although it is an extremely effective form of communication, it was actually difficult to locate around the city of Boston. The first stop I made was a regular T station. There was not one there. I thought there may be one in a bank, no luck. I then traveled to a major bus station where I found one TTY but it was unusable. Having the TTY broken made me wonder, what would I do if I was deaf? Where is the nearest one to here? What if there was an emergency? Realizing the difficulty in finding a working TTY gave a bit of insight into what the deaf and hearing impaired must go through when they are in public places and the inconvenience they face when there is a lack of facilities that are suited for them. The TTY can come in several different forms and sizes. Some are in payphones, some desktop. All have a keyboard in order to type out the information a person needs to relay to the person they are calling. TTYs must have some sort of power source, either a battery or an adapter for a plug. They also have acoustic cups on them, which the caller places the phone receiver onto. TTYs have a phone cord, usually on the left side and have a signal light that indicates when there is a dial tone. Some TTYs also have printers built in which allow the communicators to print out their conversation. Conversations can be printed but must be thrown away after the conversation, out of the respect for the other person. TTYs are created for the deaf and hearing impaired but they are able to be used by anyone. They are located in most public buildings and many businesses use them in order to contact their customers who are deaf or hearing impaired. Originally, the TTY was called the TDD or Telecommunications Device for the Deaf. The term TTY is preferred out of respect for those who are hearing ...

Occupy Wall Street Movement Assignment Example | Topics and Well Written Essays - 1500 words - 1

Occupy Wall Street Movement - Assignment Example As the discussion outlines  the main motto behind this movement was to invoke change in today’s crony capitalism by raising worldwide awareness and calling themselves as 99%. They claimed to use the tactics of Arab Spring that was to peacefully protest against the unjust. An admirer of the OWS released a video calling the youth to join the protest by gathering at lower Manhattan and occupying the Wall Street for some moths. From there other groups including the governing body, General Assembly of NYC also started joining the protest. The word of protest soon got out through the social networking sites like Twitter and Facebook. The movement soon started gaining momentum and pick up steam within a month.This paper discusses that  the protest that started on the Wall Street did not put forward any demand or grievances instead it brought some agendas to be viewed. The common agenda was the gap of 1% and 99% where 1% was considered to be the â€Å"wealthy traders and bankers at the top of the financial services sector† and the 99% was regarded to be everyone else leaving the 1% including the demonstrators or the protesters. The 1% was regarded to have a lump sum amount of money, power and wealth and was interested in conflicting with â€Å"the economic well-being of the rest of the country†.  The excessive compensation paid to the Wall Street traders aggravated income inequality and promoted excessive risk-taking. On the other hand this penalized the taxpayers whose money has gone into bailing out the failed banks.

Modern-day Slavery and abused domestic workers in kuwait Essay

Modern-day Slavery and abused domestic workers in kuwait - Essay Example There are several cases that domestic workers, who have been abused by their employers tries to escape and the Kuwaiti law allows the employers to sue these domestic workers for trying to abscond and they get these workers deported at the end of the day (Human Rights Watch, 2010). This trend can only encourage modern-day slavery in Kuwait as there have not been stringent laws to curb the excesses of employers that abuse their domestic workers. This situation is rather different from the one in the United States of America as the government of the country has made efforts to reduce the problem of modern-day slavery to the barest minimum. The US government has given the domestic workers the right to sue their employers whenever they feel they have been maltreated by them. Thus, the modern-day slavery in Kuwait seems to be more terrible than the one in the US and this is due to the fact that the domestic workers in US have the right to protest against harsh treatment, while the ones in Kuwait have not been granted that privilege (Human Rights Watch, 2010).

motivational and emotional factors help you to understand your own health and fitness Essay Example for Free

motivational and emotional factors help you to understand your own health and fitness Essay What were the motivational and environmental factors that contributed to the weight gain? The motivational factor that I belive Tasha had was prioritizing her children over her own health and the enviromental was that she had two children both at a hard age that needed her all the time witch took all the time, energy and focus. Briefly describe which approaches to motivation you feel best help us to understand the change in Tasha’s behavior. the best motivational aproach that I thought helped me understand it better was intrinsic motivation witch according to our textbook is â€Å"based on the personal satisfaction the person gets from doing the task† (Lefrancois, 2011) I choosed this because she was was being motivated by her mood and the way she feels about herself. In what ways was emotion tied to the weight gain and loss? Being tired and preocupied accounts for her weight gain and being unhappy with her weight and her mood motivated the loss. How might understanding these motivational and emotional factors help you to understand your own health and fitness? When I started reading this, I though I was reading about myself, this story has a lot to do with me. When I had my second child I gain 40 pounds I felt fat and everyone was telling me that I gain weight and I felt more discusted with myself, I hated my body and I was very unhappy with it. So one day I saw a friend of mine on facebook she had posted a picture of how she lost 30 pounds in 2 months and that got to me and I asked her how she did it and she put me in touch with the trainner that helped her. I got myself a personal trainner and started taking this product call YOR HEALTH and that has helped me loose 45 pounds and now I’m proud to say that I have the body I always dreamed of having and they want me as a model for a fitness magazine in witch im still debating because that is not my thing. By understanding these emotinal and motvational factors has helped me realize that what I did and been doing I did it all correctly. Will you change anything in your own life as a result of this scenario? I have to say as of right now I wouldn’t change anything because its something I’m doing now. Reference: R. Lefrancois (2011 ). Psychology: The human puzzle. San Diego, Bridgepoint Education, Inc retrieved from https://content.ashford.edu/books/AUPSY101.11.1/sections/sec6.4 * Select one character, past or present, from a television show, movie, book, comic, game, etc. * * Briefly describe this character, including: * * What medium (television, movie, book, etc.) is he or she from? * * Why did you select him or her? * * What is his or her personality as depicted? * * Identify one approach (e.g., common-sense, psychodynamic, humanistic, etc.) that you feel is most accurate and useful in understanding this character’s personality. * Discuss this selected theory. Why did you select it? How might this theory help us understand your character’s personality? I had a similar assigment in another class and I absolutly loved it because I got the chance to talk about my favorite character person and I absolutley love this lady her name is Madea known as Tyler Perry. She has been in manny movies all of of them has a been a great success. My favorite out of all her movies is â€Å"Witness Protection† in this movie she played a role of protecting a family that had to be under witness protection until a case was resolved in court. This family was not one of the best family not a close family but once they got to Madea’s house she made sure she tought them how to live with eachother as a family and tought them the real meaning and  importance of having a family there for you. I selected this character because in her movies she has inspired me and show me and everyone who watches her movie that no matter what family values is very important. One aprache that I choosed for her character is humanistics aproach because she would make sure you understand her world and where shes coming from for her to be able to get on you page. She has to get her point across and has to make sure everyone understands and follows what she says in a easy or a hard way just like out text boo stated â€Å"The self; worth, dignity, individuality† (Lefrancois, 2011) and â€Å"My perception of the world is real. So is yours. We have our separate realities. If we are to understand each other, you must try to understand my world, and I yours† (Lefrancois, 2011) I chosed this personality beucase and that is exactly how Madea is when shes trying to get a point across. She has all o those traits in her pesonality she shows her self her dignity and her individuality. If anybody in class has watch her movies can tell you how her personality is in manny ways I wished I had her same personality. Reference: R. Lefrancois (2011 ). Psychology: The human puzzle. San Diego, Bridgepoint Education, Inc retrieved from https://content.ashford.edu/books/AUPSY101.11.1/sections/sec8.2 R. Lefrancois (2011 ). Psychology: The human puzzle. San Diego, Bridgepoint Education, Inc retrieved from https://content.ashford.edu/books/AUPSY101.11.1/sections/sec8.7 Spet 14

Comparing the Huxtables with My Family Essay -- comparison compare con

Compating the Huxtables with My Family    Watching a comedy sitcom like The Cosby Show is a great way to unwind from a stressful day at school. The show's characters are likeable and the storyline is humorous, but halfway through the program I usually turn the television off and return to the kitchen to wash the dinner dishes. Watching The Cosby Show makes me feel guilty. The Huxtables are too perfect. Their house is too perfect. In comparison to the Huxtables I feel like an unfit mother in a slovenly, dysfunctional family. The characters on The Cosby Show should be portrayed in a more realistic manner; in fact, the program could be far more entertaining, not to mention relaxing, if certain aspects of the program such as weekday mornings, sibling quarrels and housework were made more believable.    To begin with, mornings are just too perfect at the Huxtables' house. In the kitchen the table is set; fresh flowers are in a vase, and milk is in a glass pitcher. The entire Huxtable family is simultaneously dressed and ready in clean, ironed, co-ordinated clothes. Everyone's hair is perfect and Mrs. Huxtable's makeup is flawless. The Huxtables even eat breakfast together. The family is relaxed, in a cheerful mood, and politely taking turns discussing their schedules for the day. The children have their lunches made, their shoes on, and their bookbags ready. And if that is not enough, Mr. and Mrs. Huxtable never have to hunt for their car keys.    On the other hand, my family's day begins in complete chaos. To begin with, my kids never agree as to whose turn it is to set the table. My kids would rather go hungry than perform a chore that could possibly be someone else's. I cannot afford... ... Show do housework or laundry, yet I have never seen a pile of dirty clothes; the Huxtables do not seem to have a maid. In contrast I go to Herculean efforts to keep the Health Department from knocking on my door. I do not have time to dust. When I'm not picking up shoes, washing clothes, and screaming for anyone to vacuum, I'm on my hands and knees scraping goo off the floor with a butter knife.    I always wonder who does the housework on The Cosby Show. Perhaps the Huxtables are naturally perfect, and we are natural slobs by comparison. Nevertheless, when I watch television I do not want to feel guilty. I want to relax and laugh at others in realistic situations. Just one time I would love to see Mrs. Huxtable wake up late, be unable to decide what to wear, scream at the kids, and have to call a taxi because she can't find her car keys.   

Interpreting The History Of Volcanoes And Volcanic Rocks Essay

Drawing from the diagram, the volcanic history is as outlined below and other relevant details are also supplied. 1.0 Sequential summary of volcanic history the area a. Andersite porphyry: this is the oldest. Andersite indicates magma of intermediate composition. Its silica content is midway between felsic rocks (having high silica content) and mafic rocks (having low silica content). Its formation is a two-step process where slow cooling occurs at the initial stage within the crust forming large crystals as a result. However, the remaining magma moves further out and, as a result, cools to form a fine grained texture within which the earlier formed large crystals are embedded. This indicates a slow eruption. b. Turf grading into braccia: these are pyroclastic rocks formed by violent eruption of highly viscous magma. The tuff is finer than breccia but the two are of the same occurrence of formation. The magma forces its way out shattering the surrounding plastic rocks into ashes and block fragments. These consolidate to form tuff and breccia respectively and are likely to be felsic since high viscousity indicates a high silica content c. Dacite porphyry: this is of similar composition and formation style as andersite porphyry though it has higher silica content than andersite. d. Pumice Breccia: pumice is fine textured, filled with porous holes containing gases that were trapped within the forming magma at the onset of eruption. The gases later escapes to form a light, porous glassy rock. The breccia was likely to have resulted from the shattering of the rocks as the magma erupts out. Pumice is light colured which indicates a felsic composition (felsic rocks are lightly coloured than mafic rocks) e. Polymictic breccia: this indicates a mixture of breccia of varying silica content which indicates the onset of the formation of an interrupting basaltic formation which is to follow after. However, the mode of formation is still violent. f. Basalt with rough blacky top: this is a fine grained mafic rock. The rough top indicates that the forming magma was gently erupted and the viscosity low enough to cause the included gas to just escape leaving the bubble spaces at the top. g. Andersite: this has been seen as of intermediate silica composition. The absence of porphyritic material may indicate a less quiet eruption. h. Obsidian with pumice streak: the youngest rock; obsidian resembles pumice but without the bubble holes. The presence of pumice streak indicates violent eruption since some of the gases were trapped as a result of the violence. It is felsic. 2.0 Since the last eruption is about 19 years earlier (the age of the youngest layer), the volcano is still active. The earthquakes and the likes are likely pointers to another volcanic eruption. So evacuation is imminent. 3.0 This is an example of a composite or cinder-cone volcano. The seldom occurrence of pyroclastic materials and rocks of intermediate composition suggests this. These, in addition to the fact that the rocks are from highly viscous magma, also suggests that the volcano is located at a volcanic arc.