That natural areas have spiritual values is a key element of the ""preservationist ethic"" developed by

John Muir

Explanation:

John Muir believed that forests have spiritual and transcendental qualities. They have properties that makes a person feel things that replenishes the spirit. These properties cannot be measured but only felt and experienced.

According to him forest are more than a source of food, water, wood they are more. This is why he thought that the forest's should be preserved which is the preservationist ethic.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.