As human activities constantly change the ecosystem, scientists work to find ways to keep ecosystems healthy and intact. In what ways do humans protect and restore the ecosystem? Choose the three that apply.

A.
by providing cultural services

B.
through ecological restoration

C.
by maintaining current conditions

D.
through conservation

E.
by working toward sustainability to maintain diversity

i really think its either D or B

Explanation: because its asking for three right? if so i'd say all of them except A because culture has nothing to do with saving the ecosystem does it?

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.