During 2001 worlds iron ore production was
a) 1000 million metric ton
b) 500 million metric ton
c) 580 million metric ton
d) 2000 million metric ton
answer it quickly

Amountain is larger than a hill, with steep sides true or false

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."

How does rain water cause erosion and deposition? a. when acidic water soaks into the ground, water dissolves limestone, resulting in the formation of caves.b. when a river overflows it moves downhill resulting in the formation of caves.c. when it rains, water flows into rivers and streams and moves back to land, resulting in the formation of caves.d. when water empties into lakes, sediment is deposited, resulting in formation of caves.