Meteors make a huge, bright streak in the atmosphere when they fall because . (Select all that apply.)

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.

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?