The Earth's interior is hot because of ________
A) friction
B) an inner core of magma
C) plate tectonics
D) the pull of lunar gravity
E) radioactive decay
Answer: E
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The Himalayas are:
a) the highest mountain range in the world and contain Earth's highest peak b) along the south flank of the Tibetan Plateau c) underlain by abnormally thin lithosphere d) an ancient mountain range with most uplift occurring 200 million years ago e) both a and b
Which planets contain mostly hydrogen atmospheres?
A) Mercury, Venus, and Mars B) Jupiter, Saturn, and Uranus C) Mars, Jupiter, and Saturn D) Uranus, Neptune, and Pluto
Which of the following statements about taxol is false?
A) Taxol is no longer obtained primarily from the bark of the Pacific yew. B) taxol and paclitaxel are two different but related anticancer drugs. C) taxol has been successfully synthesized by chemists. D) taxol inhibits cell division by preventing the disassembly of microtubules.
Jellies are an example of which of the following?
A) Cnidarians B) Coccolithophores C) Ctenophores D) Foraminifers E) Radiolarians