Tamil Nadu Board Solutions for Exercise 1: Evaluation

Alien species invasion is a threat to endemic species — substantiate this statement.

Mention the major threats to biodiversity caused by human activities. Explain.

What is mass extinction? Will you encounter one such extinction in the near future. Enumerate the steps to be taken to prevent it.

In Northeastern states, the jhum culture is a major threat to biodiversity — substantiate.

List out the various causes for biodiversity losses.

How can we contribute to promoting biodiversity conservation?

Write a note on protected areas.

Write a note on Wildlife sanctuaries.