Please help me in the passage of find out opposite meaning cheerful
sat
up
straight
improper
worse
​

Cheerful: sad

sat: got up

up: down

straight: squiggly

improper: proper

worse: better

Explanation:

hope that helped

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.