she asked for more direction but marcia told her there were no specific directions.

앞에는 왜 단수, 뒤는 복수로 나온 이유가 무엇일까요,,?it does not count how many species of birds the forest may harbor, or how its slopes stay stable, or what resources it can continue to provide to future generations.

and 가 아닌 or로 묶일 수도 있는건가요..?

답변 부탁드려요..