The medieval practice of binding people to a specific section of land was called a. serfdom b. slavery c. bartering d. apprenticeship

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Why are shark population in decline worldwide?

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.