Question

give reason for tropical cyclones occur rarely I brazil

Answer 1

Here is the answer

1. In the coastal regions near the equator in Brazil, difference in temperature are negligible.

2. As a result , The winds here , move in the vertical directions In that region.

3. Similarly, the area of convergence zone of the trade winds is weak here.
Hence , as it's effect, cyclones are not formed

4. This is the reason why tropical cyclones rarely occur in Brazil.

Thanks!!

Answer 2

The tropical cyclones form over ocean basins in lower latitudes of all oceans except South Atlantic Ocean and South-East Pacific Ocean. Cyclones form because of the low air pressure above the ocean.
When the ocean water is warm, more than 26°C, water evaporates from the warm ocean and form clouds. If there is low air pressure where the clouds are formed, it pulls them in and they begin to rotate. It is the Earth’s rotation and spinning on its axis that causes the cyclone’s clouds to rotate.
Cyclones over the warm tropical oceans are capable of producing dangerous winds, torrential rains and flooding, all of which may result in tremendous property damage and loss of life in coastal populations. The tropical cyclones develop over the warm water of the Bay of Bengal and the Arabian Sea and thus they are a matter of concern for coastal regions of India time and often.