Answer:
Salts and other chemicals are removed by perspiration or precipitation?
First: What is precipitation?
Precipitation is any liquid or frozen water that forms in the atmosphere and falls back to the Earth. It comes in many forms, like rain, sleet, and snow. These ice crystals then fall to the Earth as snow, hail, or rain, depending on the temperature within the cloud and at the Earth's surface
What is perspiration?
Perspiration act or process of insensibly eliminating fluid through the pores of the skin, which evaporates immediately. The sensible elimination of fluid through the pores of the skin, which is visible as droplets on the skin. Perspiration basically means the act of sweating.
So the answer is...
Perspiration