When a cold front approaches
A) altostratus clouds form.
B) winds blow from the north.
C) air pressure remains steady.
D) air pressure drops.
E) none of the above
D
Environmental & Atmospheric Sciences
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The reformer in a fuel cell system
A. stores energy much like a battery. B. provides oxygen for the energy-releasing chemical reactions. C. extracts hydrogen atoms from a variety of chemical substrates.
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Deep-ocean sediments are typically composed of ____
a. Beach sand b. Silt c. Shells d. Biological oozes e. Fine clays
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The ________ is the most voluminous of the Earth's three major concentric zones.
A. lithosphere B. core C. mantle D. crust E. asthenosphere
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In which part of Canada are average summer dew point temperatures highest?
A. the West Coast B. the Arctic C. the Prairies D. Southern Ontario
Environmental & Atmospheric Sciences