How are global issues and human geography potentially connected?

How would i answer this for an exam?

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.

The ratio of the measures of the three angles in a triangle is 14: 15: 11 find the measures of the angles