3. The rate of weathering in the graph is described in four ways, much like a runner can be described as slow, fast, faster, and fastest. List the four weathering rates in order from weakest
to strongest.

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.

Answermost of the time it would be ground into fine sediment,and sometimes they are carried away from the original location;

The correct answer is:   [b]:   "physical systems" .