Tropical Rainforest Canopies Are Generally

Multiple Choice

Tropical rainforest canopies are generally

A) a two-layer canopy that is thickest in its upper layer and thin in its lower layer.
B) a two-layer canopy that is thickest in its lower layer and thin in its upper layer.
C) a three-layer canopy that is thickest at the ground level.
D) a three-layer canopy that is thickest in its middle layer.
E) a one-layer canopy.