While building the pyramids, the egyptians developed?

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.

As water is cooled from 4 c to 0 c its density

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.