Which phrase is true of the revolution period of the moon?

A. greater than the rotation period

B. always changing

C. equal to the rotation period

D. less than the rotation period

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

Organisms within a population must compete for resources to survive

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?