Can someone help me write an overview ?

What role did the waterways of europe play in development of europe's economy

How does the parallax of a nearby object compare to that of an object farther away?

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.