Salts and other chemicals are removed from the skin by

Sweat glands.

Explanation:

The sweat glands are also called as the sudoriferous and are small tubular structure if the skin that produces the sweat and a type of the exocrine gland and they are responsible for the removal of the salt contents and that produce and secrete the substance to the excrete the toxic substance out f the human body.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answerstratovolcanoes///near or in the ring of fire;