Afold in rock that bends upward into an arch is called?

Which country is currently the most populated country in the world? a. india b. china c. mongolia d. indonesia

These factors threaten north americas ecosystems

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.