What has led to much of the erosion in the world s grasslands?
a. wind
c. water
b. acid rain
d. over-grazing

Iii-eneral sciencewhich of these is the best explanation of how a smooth round stone became smooth? a continuous freezing and thawingbvolcanic actioncit fell off the side of a cliffdit was in a stream for a long time.

Which most likely was persia’s most valuable asset?

Deep-ocean and are created by convergent boundaries of an ocean and continental crust