Which action did john muir take that brought about "green awareness"? a. he spoke to congress on behalf of farmers to restrict the greenhouse farming movement. b. he wrote a book on the need for preserving american indian lands. c. he joined with researchers and biologists to discover the effects of insecticides. d. he advocated for the preservation of wildlands in the united states. for any !

The correct answer is D.

John Muir (1838-1914), also known as the Father of the National Parks contributed through his activism to the presevations of US wildlands, such as Yosemite Valley or the Western forests.

He founded the environmental organization Sierra Club. He also wrote many articles and up to 10 books, describing his travelling experiences and enthusiastically promoting echological behaviours and preservation principles.

your answer should be c, it seems to be the only one that makes sense. mark me branliest : )