How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?