Hydrogenous sediments:
a. are of biological origin
b. are of extraterrestrial origin.
c. originate from weathering and erosion.
d. precipitate directly from seawater.
d
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Which of the following describes an example of living sustainably?
A. A city lives at its biocapacity and consumes natural capital without replenishment. B. A city lives off of its natural income and preserves and replenishes natural capital. C. A city relies heavily on fossil fuels. D. A city has a substantial recycling program even though it generates far more waste than it recycles. E. A city uses natural capital and renewable resources with a rapidly growing ecological footprint.
Which Caribbean country experienced a devastating earthquake in January 2010?
A) Cuba B) Jamaica C) Haiti D) Barbados E) the Bahamas
Alpine glaciers
A) are thick layers of ice over 3 km in thickness. B) form near the peaks of individual mountains. C) are found at the poles. D) are increasing in size each year.
What do many deep water organisms use for feeding and the attraction of mates?
a. Keen eyesight b. Bioluminescence c. Sense of smell d. Electrical impulses