With reference to the demographic profile of India, consider the following statements :

1. The proportion of the population in the age group 0 to 6 declined from 16% to 13% over the period 2001-11.
2. Of all the States, 20 States have achieved replacement level fertility.

Which of the statements given above is/are correct?

During the time of economic recession :

How does silver iodide help in the creation of artificial rainfall?

The most important component(s) for the paper industry is/are

Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decreases. What causes this condition?

TAPI gas pipeline is meant to go through :