Dark clouds extending to height of about 15,000 metres which bring a lot of rain to tropical lands are known as

The dark clouds extending to a height of about 15,000 metres which bring a lot of rain to tropical lands are known as cumulonimbus clouds. Cumulonimbus clouds are large and towering, with a dark base and a fluffy top that can sometimes resemble an anvil. They are formed by a combination of rising warm air and moisture, which leads to the formation of thunderstorms and heavy rainfall. These clouds are commonly found in tropical regions where the weather is warm and humid. They can also be associated with strong winds, lightning, and hailstones. The heavy rainfall from cumulonimbus clouds is important for agriculture, as it can provide water for crops and replenish water sources. In summary, cumulonimbus clouds are large, dark clouds that bring heavy rainfall to tropical lands. They are formed by rising warm air and moisture and can also be associated with strong winds, lightning, and hailstones.