Coal is

A) a very rare fossil fuel.
B) a chemical or biogenic sedimentary rock consisting of plant organic matter.
C) an inorganic form of energy.
D) a mafic igneous rock.


Answer: B

Environmental & Atmospheric Sciences

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The prices received for exports relative to the prices paid for imports is called the free market

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Pyroclastic eruptions on a snow-capped volcano

A. can create dangerous lahars. B. cause the volcanic ash to solidify. C. stop when the melting snow cools the eruption. D. are physically impossible.

Environmental & Atmospheric Sciences

Within which range of latitudes in the Northern Hemisphere is 24 hours of daylight experienced?


Figure 9-2: Earth–Sun relations on June solstice.

Noting the orientation of the circle of illumination on June 21, explain the above question.

What will be an ideal response?

Environmental & Atmospheric Sciences

A pyramidal peak formed in glaciated mountains is

A) a col. B) an arĂªtes. C) a horn. D) a cirque.

Environmental & Atmospheric Sciences