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