The oldest method of controlling weed is

Which practices are part of sustainable agriculture?

(A) Monoculture farming

(B) Use of biological pest control

Which of the following statements about the Silent Valley Movement are correct?

What term is used for a natural resource that cannot be replenished as quickly as it is consumed?

Which of the following best describes the aim of the Green Belt Movement, founded by Wangari Maathai?

Which of the following are primary air pollutants? 

Which are recognized renewable energy sources?

(A) Coal

(B) Solar energy

(C) Wind energy

(D) Natural gas

Consider the following statements (A) and (B). 

  Statement (A) : Crows build nests on very low branches on a tree. 

Match the environmental treaties with their focus area:

What does "biodegradation" involve?

What are effective methods to reduce air pollution?

(A) Increased use of fossil fuels

(B) Afforestation

(C) Carpooling