The discovery, along with three other Jovian moons, was the first time a moon was discovered orbiting a planet other than Earth. Galileo's discovery eventually led to the understanding that planets orbit the sun, instead of our solar system revolving around Earth. Galileo called this moon Jupiter III.
It was the Precambrian time that lasts 7/8 of the earths history. So, A.
The answer is A it's the action of purifying water
A “polygene” or “multiple gene inheritance” is a member of a group on non-epistatic genes that interact additively to influence a phenotypic trait.
