Large shrubs and trees are often planted near rivers to help prevent flooding. The deep, highly-absorbent roots of these shrubs and trees help soak up heavy rains before they begin to flood the land. Because they reach high above the ground and their branches
and leaves spread outward, trees can also reduce the amount of rainfall that reaches the ground by up to 45%. In the event of a
flood, what additional benefit might these shrubs and trees provide?
A
they store and hotd-excess water to prepare for dry seasons:
B)
They prevent flood waters from entering and polluting the rivers.
c
They help to slow down the flow of water, reducing damaging impacts.
D
They absorb harmful pollutants and stop debris from entering the river.