Consider the following eight phrases: 1. careful inventory and mapping to determine dangers 2. weathering of minerals to produce clay 3. controlled blasting of unstable slopes 4. controlled water drainage 5. retaining walls along highway embankments 6. spraying shotcrete on road cuts 7. removing support at the toe of the slope 8. adding weight at the top of the slope which of these are factors that lead to mass movement? choose one:
a. choices 1, 2, and 4
b. choices 2, 7, and 8
c. choices 3 and 8 only
d. choices 2, 4, 7, and 8

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust. 

How is this even a question?

Hey there  jaylajakara15p8gvfy! question:   approximately what per cent of russia is used for permanent cropland? answer: b) 10%hope this ! -jayden

Drought resistance because they are close to a lot of supplys