Which of the following statements is false?
A. The process of ocean acidification enabled life on land to evolve.
B. CFCs are odorless and stable.
C. CFCs are nonflammable, nontoxic, and noncorrosive.
D. Ocean acidification is responsible for the breakdown of ozone to molecular oxygen.
E. CFCs are cheap to produce.
Answer: D
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Cavities in extrusive rocks resulting from gas bubbles in the lava are called:
a) Phenocrysts b) Matrix c) Vesicles d) Vascular e) Blobs
The 2014 Ebola virus outbreak in West Africa
A) was quickly contained and caused only a few dozen fatalities. B) has spread to nearly every nation on the continent and is not contained. C) was a challenge to control because there is no vaccine and because few regional health facilities exist. D) is an airborne virus that causes usually fatal damage to the respiratory system.
Which of the following is NOT a source of atmospheric oxygen in the oxygen cycle?
A) The weathering of rocks B) The burning of fossil fuels C) Water from plant transpiration D) Decomposition of water during photosynthesis E) Decomposition of nitrogen by solar energy
What is NOT true regarding transform boundaries?
A. Tectonic plates slip past each other laterally. B. Movement occurs along great vertical fractures. C. They neither create new crust nor destroy old crust. D. They’re associated with very little seismic activity. E. They mostly coincide with midocean ridge systems.