Explain with examples the natural changes of environment?
Explain the necessity of environmental studies?
What do you mean by noise pollution ?
What are the different hypotheses regarding the origin of the earth ?
What are the ways to conserve forest ?
Define environmental studies?
The mystery beneath the crust – explain?
Define water pollution?
Discuss the sources of odour pollution?
How many principal gases are there in the atmosphere ?
What do you mean by waste water ?
Describe the principal characteristics of environment?
What are the measures to control odour pollution ?
What are the uses of water ?
Describe the principal constituents of earth?