The primary physical process responsible for the formation of Earth's layers, the inner and outer core, mantle, and crust is ____
A) density stratification
B) radioactive decay
C) outgassing
D) mass layering
A
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There is good evidence that variation in solar energy, as evinced by sunspot activity cycles, is
responsible for short-term climatic variations. Indicate whether the statement is true or false.
Which of the following personal actions could have the greatest impact in reducing greenhouse gas emissions?
A) driving a hybrid car using ethanol B) recycling aluminum to the nearest industry C) eating organically D) switching to all compact fluorescent bulbs for lighting E) increasing home insulation
The Coriolis force makes wind traveling in a straight path appear to be deflected in relationship to the Earth's rotation
Indicate whether the statement is true or false
Sediment deposition occurs primarily in what part of a river system?
A) the flood plain B) the head waters C) the trunk stream D) near the outlet E) the drainage divide