Diffusion is the movement of a substance? A. only through a lipid bilayer membrane
B. from an area of low concentration to an area of higher concentration
C. only in liquids
D. from an area of high concentration to an area of lower concentration

D.from an area of high concentration to an area of lower concentration

Explanation:

Explanation:

Diffusion also happens for gases, so it is not C. Diffusion does not require energy, so it is not B. It cannot be A as diffusion can happen through other membranes, I think? Therefore, it is D.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.