Name the property of Equality that justifies the statement:
If p=q, then p-r = q - r

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.

Which of these has the least impact on the climate of a place

What are the answers for the following questions?