How is an ecosystem evolved? Write different components of an ecosystem. How is balance maintained in an ecosystem? Comment on the statement, "An ecosystem with large population is not healthy". (Unit 2)

What is Biodiversity? Discuss about the different kinds of diversity in organisms. Write in detail about conservation of biodiversity. (Unit 3)

a) Give the classification of hydro-electric power plant. What are the criteria of site selection for hydroelectric plant? (Unit 1)

b) Differentiate between single-basin and double-basin tidal plants. Explain briefly the various components of tidal power plants. (Unit 1)

Explain the term Solid waste. What are adverse effects of solid wastes in society? Discuss various methods for disposal of solid wastes. (Unit 4)

Write short notes on any two of the following.

a) Fossil fuels (Unit 1)

b) Ozone layer depletion (Unit 5)

c) Acid rain (Unit 5)

a) What is Food Chain? Explain various types of food chains. (Unit 2)

b) Explain aquatic Ecosystem. (Unit 2)

a) What do you understand by concept of Green building? Explain. (Unit 5)

b) What is Energy conservation? Write down different methods of energy conservation. (Unit 1)

Write brief notes on any two of following:

i) Ecological pyramid (Unit 2)

ii) Ethics (Unit 5)

iii) Global warming (Unit 5)

iv) Disaster management (Unit 4)