Q. Consider the following statements about shifting cultivation:

1. It is widely practised by many tribes in the tropics.
2. The vegetation is usually cleared by fire, and the ashes add to the fertility of the soil.
3. The cultivation is usually done with very primitive tools.

Which of the above is / are correct?
Answer: All of the above
Notes: Primitive subsistence agriculture or shifting cultivation is widely practised by many tribes in the tropics, especially in Africa, south and central America and South East Asia. The vegetation is usually cleared by fire, and the ashes add to the fertility of the soil. The cultivated patches are very small and cultivation is done with very primitive tools such as sticks and hoes.