There is a possibility of spreading the mutated gene in the population of an organism when?

When were the fundamental duties included in the Indian Constitution?

The process of political integration of Rajasthan started?

Which is the largest salt producing state of India?

The formation of ozone hole is maximum?

What is the shadow of the inner part of the moon called?

Where is the mountain tribe called Britain found?

Black soil color is black due to presence of abundant minerals?