Though no longer a series of colonies, the United States retains close ties to Britain as A a commonwealth
B. a dependency
C. a dominion
D. part of a "special relationship"

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.

Answer sinking and cooled;

  the  peripheral nervous system consists of all of the nerves that lie outside the brain and spinal cord.