Qué actividades promovieron el desarrollo de los centros urbanos

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.

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau