The cause of Minamata disease is-

Deficiency of which element causes goitre disease?

Leaving of the following in ponds and wells helps in controlling mosquitoes?

A normal healthy human's heart beats every minute—

The cause of polio is-

On the day of 21 July 1969, who created a new history by setting foot on the moon.

Who was the first Indian astronaut-

The number of alingusutras in a center of man is-