1.What is the importance of tropical rainforests?
A.it can help in preventing floods.

B.offer shelter to plants,animals, and other living organisms.

C.Tropical rainforest is one of the sources of oxygen in the ecosystem

D.all the above


2.Mangrove swamps play important role in the ecosystem. Which of the following is not the role of the mangrove swamps?
A.Slowing coastal erosion
B.sheltering many animals
C.Making coastal erosion worse
D.Protecting