Igneous rock is considered extrusive or intrusive based on:
a. how many holes the rocks contain
b. the crystalline structure of the rock particles
c. whether they were formed by cooling above or below the earth’s surface.
d. if they formed from magma or sediments

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.

Which most likely was persia’s most valuable asset?

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire