problem 1:

Illustrate out the meaning of acid mine drainage?

problem 2:

Illustrate out the meaning of Green Revolution?

problem 3:

Illustrate out the meaning of biogeochemical cycles?

problem 4:

Illustrate out the meaning of Hot spots?

problem 5:

Illustrate out the meaning of sewage farming?

problem 6:

prepare down the various techniques for controlling noise pollution?

problem 7:

prepare down any four current environmental issues.

problem 8:

Illustrate out the term Holocaust?

problem 9:

Describe the term population growth.

problem 10:

Make a distinction between natality and mortality.