The majority of india’s population is

The majority of India’s population is Hindu by religion.

Explanation:

The Hindus in India make up about 80% of the entire Indian population. The country is predominantly a Hindu majority country owing to its vast history of Hindu descendant. Though there is a huge majority of Hindus in the country, the government claims to have no official state religion. According to the census data of the last few decades, the percentage of Hindu population in India is observed to have been declining.

B.a pop up at ion changes in response to a change in the environment.

Freshwater ecosystems