Give a brief account of the components of environment.
Discuss the sources of odour pollution?
How many principal gases are there in the atmosphere ?
What are the causes of environmental change ?
What is the meaning and objective of environmental education ?
What are the sources of water pollution ?
The mystery beneath the crust – explain?
What do you mean by environmental change ?
Explain the necessity of environmental studies?
What is the meaning of odour pollution ?
What do you mean by noise pollution ?
What do you mean by waste water ?
Describe the principal constituents of earth?
What are the measures to control odour pollution ?
Define ecosystem?