Even where the land is thickly covered with plants, some erosion goes on. In the spring, the melting snow turns into a large (50)________ of water that then runs downhill in streams.
Even where the land is thickly covered with plants, some erosion goes on. In the spring, the melting snow turns into a large (50)________ of water that then runs downhill in streams.
A. quantity
B. quality
C. number
D. total