Riddle

Environmentalists want to keep this from drying.

Choose an answer

A.A rainforest
B.A river
C.A reservoir
D.A wetland
Hint: It's a 2-word phrase with 8 letters, starting with "A".

Answer

A wetland

Why this is the answer

Wetlands are critical ecosystems that environmentalists work to protect from drying out and disappearing.

This riddle is filed under Hard/Difficult Riddles and rated Easy.