In 2000, delegates from 122 countries completed a global treaty to control 12 persistent organic pollutants (POPs) including ____.
A. DDT
B. ozone
C. chlorofluorocarbons
D. methane gas
E. mercury
Answer: A
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Existing treaties actually allocate more Colorado River water than its typical total annual stream flow.
Answer the following statement true (T) or false (F)
The total fertility rate is:
A. high in regions of the world with high education levels. B. high in economically less developed regions of the world. C. high in economically developed regions of the world. D. high in regions of the world where few teenaged women are married.
Which of the following best describes the movement of a glacier?
A. Glaciers never move up an incline, but always down a land slope. B. Glaciers move during periods of climate cooling, such as an ice age and are stationary during warmer periods. C. A glacier typically moves slowly, on the order of a few tens of meters per year, although faster movement, called surging, can occur in alpine glaciers. D. A glacier typically moves rapidly, on the order of several kilometers in a season.
The ________ is the point of origination for an earthquake.
a.) epizone b.) fault point c.) seismic centroid d.) focus