notesblognepal.blogspot.com A. Write answers to the following questions. What is energy? Mention any four forms of energy with examples. notesblognepal.blogspot.com Describe in short why energy is important for the development of a nation. notesblognepal.blogspot.com What is meant by furl? Mention any three common sources of energy in rural parts of Nepal. notesblognepal.blogspot.com Explain in brief the importance of energy in industrial development. notesblognepal.blogspot.com What is meant by the source of energy? Mention any four major sources of energy in urban parts of Nepal. notesblognepal.blogspot.com What is a renewable source of energy? Give three examples also. notesblognepal.blogspot.com What is a non-renewable source of energy? Give three examples also. notesblognepal.blogspot.com What is a bio-fuel? Is it a renewable source of a non-renewable source of energy? Give reasons to support your answer. notesblognepal.blogspot....
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notesblognepal.blogspot.com 1. Answer the following questions a. What is atmosphere? What are the constituent of the earth atmosphere? notesblognepal.blogspot.com Answer: It is the mixture of gases surrounding any celestial object that has gravitational field strong enough to prevent the gases from escaping. The principal constituent of the atmosphere are nitrogen and oxygen. There are other gases as well like carbon dioxide, methane, nitrous oxide and many other gases, which include both active and inert gases. b. What is ozone layer? Where is it found? notesblognepal.blogspot.com Answer: It is an atmospheric concentration of ozone found at an altitude of 16-50 k.m above the earth’s surface. It is tri-atomic structural gas of oxygen atom. It is found in the stratosphere. [a region of the upper atmosphere, between about 16-50 km in altitude containing a relatively high concentration of ozone that absorbs solar UV radiation in a wavelength...
notesblognepal.blogspot.com 1. Answer the following questions notesblognepal.blogspot.com a. What is a greenhouse? What is its specific characteristics? notesblognepal.blogspot.com Answer: - Greenhouse is a house made up of glass or plastic, especially constructed to grow plants by maintaining proper temperature inside it. It allows the radiation of sun to pass in but the reflected rays can not escape away from within the house. By such process there is the condition, where the heat get trapped and the temperature is more than in the surrounding. In other words the wall of greenhouse keeps warmer inside it by trapping infrared radiation. (A greenhouse is a form of controlled environment agriculture because the temperature, light, moisture, soil and other conditions essential for plants' growth can be regulated) b. What is ...