Important astronomical forces affecting Earth include all of the following except
A. the Earth is occasionally impacted by comets and meteorites.
B. the Sun radiates energy which warms our planet and drives global climate.
C. volcanoes produce the Earth's oceans.
D. the Moon's gravitational field produces tide currents which carry nutrients.
Answer: C
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You run a business selling bait to fisherman near the tip of a large sand spit. A sand and gravel company owns coastal property up the coast from you—the other direction from the tip of the spit
The sand and gravel company plans to dredge sand from the beach and mine the sand and gravel from a seacliff that is eroding in the coastal zone. What should be your opinion on this sand and gravel operation? A) There is no problem; the operator will increase sediment supply to the beach which will help your little sand spit. B) There is no problem; the longshore drift is away from you. It is people up the coast who should be concerned. C) You should look for a lawyer or a real estate agent because the sand and gravel operation will destroy your sand spit in time D) You should go into business with the sand and gravel operator and have them deliver sand to your beach to help tourism.
Which one of these is a high silica, plutonic rock?
- Basalt
- Gabbro
- Granite
- Rhyolite
Which of the following contracts most when the temperature is increased? Equal volumes of
A) iron. B) wood. C) ice water. D) helium. E) None of these contract when heated.
This biological process may have resulted in the development of eukaryotic organisms from
primitive prokaryotic organisms:a. endosymbiosis d. progradation b. abiogenesis e. outgassing c. stratification