Please help
When one continental plate slides beneath another
A.
weathering and erosion work to build high plateaus and mountain ranges.
B.
the process of melting returns material to the Earth's surface.
C.
material from the Earth's interior is always returned to the surface.
D.
material from the Earth's surface is returned to the interior.

Based on their location in the atmosphere, the layers are able to have their own special characteristics. for example, most weather occurs in the troposphere. what occurs in each of the other layers?

Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.

The process by which liquid water changes into water vapour is called what ?