Coal forms
A. through hydrothermal processes
B. by crystal settling
C. on the ocean floor
D. by compaction of plant material
Answer: D
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Most governments of the world support family planning and the use of contraceptives
Indicate whether this statement is true or false.
Which process results in a decrease in relative humidity?
A) cooling the air B) warming the air C) increasing the actual water vapor pressure D) decreasing the saturation water vapor pressure
The two largest language families in the world are
A) Indo-Iranian and Balto-Slavic. B) Sino-Tibetan and Indo-European. C) Afro-Asiatic and Sino-Tibetan. D) Balto-Slavic and Sino-Tibetan. E) Altaic and Nilo-Saharan.
In a stream, water erodes more on the outside of bends than on the inside of bends.
Indicate whether the statement is true or false