The primary source of energy in much of the developing world is

A. biomass.
B. peat.
C. natural gas.
D. coal.


Answer: A

Environmental & Atmospheric Sciences

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Humans affect mountain biomes by

a. plowing and conversion of pristine land to cropland b. depletion of groundwater c. increased air pollution from urban areas d. hydroelectric dams and reservoirs e. establishment of tree plantations

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The world's rainforest regions are found under the ____

a. subtropical high b. equatorial low c. polar high d. middle latitude low

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Analyze the plate boundary diagram shown. Assume north is toward the top of the diagram, west to the left, east to the right. Where would you expect to only observe shallow earthquakes?

Analyze the plate boundary diagram shown. Assume north is toward the top of the diagram, west to the left, east to the right. Where would you expect to only observe shallow earthquakes?

  • Between A and X
  • Between B and C
  • Between A and B
  • Deeper to the east at A and to the west at B.

Environmental & Atmospheric Sciences

A fly preserved in amber is an example of a trace fossil. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences