Write a short summary in your own words about each of these animals. The first four are whale ancestors, and the last two are modern whales. Note any major changes or adaptations, or interesting information from the fossil record. Each summary should be three to five sentences. You may research this information using reliable journals, books, or websites. You can review reliable sources if needed. Be sure to note any sources you use. Pakicetus
Ambulocetus
Rodhocetus
Dorudon
Odontocetes
Mysticetes

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds