Following a major earthquake, aftershocks diminish in magnitude but may still be powerful enough to destroy or further damage weakened buildings.
a. true
b. false
Ans: a. true
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Which of the following changes happens to the humidity if the amount of water vapour in the atmosphere remains constant?
A. It must change, regardless of which measure of humidity is used. B. It might change, depending on which measure of humidity is used. C. It cannot change, if absolute humidity is the measure of humidity used. D. It will change only if absolute humidity is the measure of humidity used.
The gravity lock of the Moon to Earth is similar to the action of a
A. spinning top. B. master key. C. tidal wave. D. giant pendulum. E. magnetic compass.
Slightly acidic water reacts with calcite in an aquifer to form soluble sodium bicarbonate Indicate whether the statement is true or false
The following are greenhouse gases EXCEPT:
a. ozone b. carbon dioxide c. methane d. radon