The water for Earth’s ocean originated from ____
a. volcanic activity and other planets
b. volcanic activity and comets
c. other planets
d. the sun
e. solar nebula
b
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Which of the following is NOT one of the four dominant language families for the African region?
a. European b. Nilo-Saharan c. Niger-Congo d. Afro-Asiatic e. Austronesian
An element is defined by the number of electrons the orbit the nucleus
Indicate whether the statement is true or false
The ____________________ rate of increase is the rate a population would grow if it had unlimited resources.
Fill in the blank(s) with the appropriate word(s).
When a deep upper-level trough is located to the east of a surface anticyclone, the surface anticyclone will tend to move toward the
a. northwest. b. northeast. c. southwest. d. southeast. e. west.