Consider the following statements about Mangroves.

1. It prevents soil erosion.
2. It acts as breeding site for many sea organisms.
3. It is one of the cause of marine pollution.

Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

Ans – [A] 

Explanation – Mangroves are shrubs or small trees that grow in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves occur worldwide in the tropics and subtropics, Mangroves are salt tolerant trees, also called halophytes, and are adapted to life in harsh coastal conditions. They contain a complex salt filtration system and complex root system to cope with salt water immersion and  wave action. They are adapted to the low oxygen (anoxic) conditions of waterlogged mud. Mangrove forests are not reason of marine pollution. Rest all above functions are performed by them.