Coal is, by far, the dirtiest of all fossil fuels.
Answer the following statement true (T) or false (F)
True
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What phylum contains jellyfish?
a. Porifera b. Cnidaria c. Echinodermata d. Platyhelminthes e. Mollusca
A temperature inversion occurs when
A) high levels of sunshine burn off a fog. B) regions experience high winds and intense sunshine. C) the air near the ground is cooler than the air directly above it. D) the air near the ground is warmer than the air at higher altitudes.
What did the differing paleomagnetic records for each continent show?
a. each continent had its own magnetic pole during successive geological periods b. that the magnetic poles for each continent had moved over geological time c. that the magnetic poles have remained in one location and each of the continents has moved d. that both the poles and the continents have moved over time e. none of these
What is the relationship between stream gradient and average stream velocity?
A. Both stream gradient and velocity increase down stream. B. Both stream gradient and velocity decrease down stream. C. Stream gradient decreases while stream velocity increases down stream. D. Stream gradient increases while stream velocity decreases down stream.