Rainy season is needed by all creations in the world, such as; human beings, animals, plants. for human beings, rainy season is needed to take a bath, to drink, to water the plants and many other benefits, and for plants is to help growth to be more useful for human beings and for animal the same as human being is to drink when they feel very thirsty.
Rainy season also can be dangerous when it happens flood or flash flood because it will damage everything in the world. how to avoid the flood? we have to realize that floods doesn't occur by itself but it happens because of human's error, like throwing rubbish any where and illegal logging. when the ground can not absorb the water, it will happen flood every where.