Give a brief account of the components of environment.
What is environment ?
What are the measures to control odour pollution ?
Describe the principal characteristics of environment?
Explain the necessity of environmental studies?
Explain with examples the natural changes of environment?
What are the causes of environmental change ?
What are the uses of water ?
What do you mean by noise pollution ?
What are the different hypotheses regarding the origin of the earth ?
Describe the principal constituents of earth?
Define ecosystem?
What do you mean by waste water ?
How many principal gases are there in the atmosphere ?
What are the sources of water pollution ?