99 points

air pollution leads to destruction of walls of the alveoli. use complete sentences to explain how respiration is likely to be affected by air pollution.

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

Everything that surrounds a particular organism

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.