Question

many species have become vulnerable or endangered and some are on the verge of extinction give reason

Answer 1

an endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally. Dinosaurs, for instance, lost their habitat about 65 million years ago.

Answer 2

Many species have become $\textbf{Vulnerable}$ or $\textbf{endangered}$ because if the following reasons :

1. Present human activities.

This mainly is of greed of the products obtained from them, deforestation.

2. Change in climate.

Change in climate also affected these Species survival as thier body can't manage to adjust with the change occured.