Answer:
A. He took my savings, the snake, and then seemed to totally disappear.
B. The salesman seemed smooth and deadly as a snake to the customers.
C. She moved fast like a snake but fortunately did not enjoy eating live mice.
D. The snake we discovered hiding in the woodshed was nearly seven feet long.
Explanation:
B
I bought a dog is a sentence rather than a fragment.
Answer:
The flood plains make agriculture possible because it provides fresh water and it is the most fertile land.
Explanation:
floodplains are usually very fertile agricultural areas. Floods carry nutrient-rich silt and sediment, and distribute it across a wide area. floodplains are flat and often have relatively few boulders or other large obstacles that may prevent farming.