Black soils, known for their fertility, are suitable for growing:

Rice
Cotton
Tea
Coffee

The correct answer is: a) Rice

Black soils are known for their fertility and are suitable for growing a variety of crops, including rice. Rice is a staple food for millions of people around the world and is grown in many different parts of the world. Black soils are particularly well-suited for growing rice because they are rich in organic matter and have good drainage.

Option b) Cotton is not a good choice because it is a thirsty crop that requires a lot of water. Black soils are not as well-suited for growing cotton as other types of soil.

Option c) Tea is not a good choice because it is a shade-loving crop. Black soils are not as well-suited for growing tea as other types of soil.

Option d) Coffee is not a good choice because it is a high-altitude crop. Black soils are not as well-suited for growing coffee as other types of soil.