As trees along a heavily shaded stream are cut down for farm land, the Environmental Protection Agency (EPA) must measure changes to the local stream habitat. Which tool would provide the MOST relevan

As trees along a heavily shaded stream are cut down for farm land, the Environmental Protection Agency (EPA) must measure changes to the local stream habitat. Which tool would provide the MOST relevant data when monitoring changes in the stream habitat as caused by the tree loss and shade loss? A) balance B) barometer C) rain gauge D) thermo