A stream has jumped its banks and is starting to flow through a formerly dry prairie. Trees are beginning to take root near the riverbed and are starting to develop a canopy. Explain what you believe will happen to the native grass that has flourished in this spot up until now, and why.

Question

A stream has jumped its banks and is starting to flow through a formerly dry prairie.  Trees are beginning to take root near the riverbed and are starting to develop a canopy.  Explain what you believe will happen to the native grass that has flourished in this spot up until now, and why.

Ms. Sue · Answer

Grasses need sunlight in order to grow. When trees form a canopy, the sun is shut out and the grasses die out.