Why is the food web important to the world

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

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

What is the number of phosphates in an atp molecule