My answer to the question is Let me put this in terms even you can understand.

the awnsers b

explanation:

one of the central themes of edward abbey's work has been his staunch opposition to the glen canyon dam on the colorado river that created lake powell, destroying stunning scenery and wildlife habitat, endangering many rare species of fish and animals, and also irreparably destroying many important archaeological sites which provided information about the early inhabitants of the united states.

sorry no one is gonna answer you if you keep repeating the same question over and over again.