Which of the following statements best explains the absence or sparcity of undergrowth in the equatorial rain forest?
-
A.
Very little rain reaches the ground because of the dense vegetation -
B.
There is too much precipitation which destroys the undergrowth -
C.
the taller trees cut off most of the sunlight -
D.
most of the precipitation is usually cleared by run-off after heavy thunderstorms -
E.
the trees have very strong and large roots which prevent undergrowth