What's happening is a side effect of the world getting wealthier and not crowded with people,
watson said. humans need more energy and more land. and
way society has tried to achieve that has cut down on biodiversity, he said. which idea best supported by the paragraph above?

a. humans are using more natural resources in order to keep up with the needs and desires of an expanding and increasingly wealthy population.

b. the wealthiest nation's are purposefully cutting down on biodiesel in order to maintain control over their environmental.

c. most wealthy people have no concern for the well-being of the natural world and the importance of biodiversity.

d. people, especially those in wealthy countries, are contributing to global warming, which is posing a major threat to the world's biodiversity.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.