Deep water is colder than surface because:
A. Deep water cools where there is no sunlight
B. Hydrothermal vents keep it cool
C. Water sinks, then cools
D. It gets cold at the surface, then sinks
E. All of the abovef
Answer: D. It gets cold at the surface, then sinks
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The collision-coalescence process of precipitation formation is effective when: a. cloud temperatures are above freezing
b. cloud temperatures are below freezing. c. clouds are composed exclusively of ice crystals. d. None of these choices.
Which of the following is the definition of a scientific theory?
A) The gathering of data through observations B) A tentative explanation used to explain observed activities C) A well-tested and widely accepted view that explains observable facts D) An educated guess
In the Northern Hemisphere, if the wind is at your back, low pressure is to the right
Indicate whether the statement is true or false
The nervous system releases hormones at synapses and the endocrine system releases neurotransmitters into the bloodstream.
a. true b. false