If I can remember correctly, I believe the control is what id being tested...
Rivers are large bodies contained of water which always move from the higher part to the lower. Over years It could change landscape of a land through erosion by slowly scrapping the land it passed through
The correct answer is water
Hello!
Your answer is D.
"treeless, permafrost, cold dark winters"
A tundra is a large stretch of land usually near mountains, it is often snowy and very cold. It has small dunes and little to no life besides grass and some animals.
Hope this helps!
