Why is transhumance necessary in some climatic
zones?

A. because poor soils are replenished during
annual flooding

B. because intensive agriculture is necessary to
feed growing populations

C. because pasture is available only at lower
elevations during winter

D. because slash-and-burn agriculture has
decreased tropical land area

E. because humans are not suited to work
intensively in all climates

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.

Over half of the african-american population in the united states live in

If we review the changes in the landscape surrounding the great salt lake in utah we can see a change in topography. look at the area to the south of the lake. what change has occurred during the last twenty-nine years? a) erosion of the hills b) an increase in marshland c) flooding of the area and the development of wetlands d) deposition of sediments and an increase in elevation