Name two abiotic factors that affect the abundance and distribution of corals. Then, using evidence from the passage, describe how human activities have affected these factors, making
corals vulnerable to extinction.

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.

the answer is d. none of the above