A lighthouse keeper stands at the top of her 175ft tall lighthouse and spots a fishing
boat in the distance at sea. She estimates
the boat is about 2640ft off shore. What is
the measure of the angle of depression
from the keeper to the fishing boat?

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.

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