The atomic mass number is equal to the sum of the
a. neutrons and isotopes
b. neutrons and electrons
c. neutrons and protons
d. protons, neutrons, and electrons
e. protons only
C
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In the United States, tornadoes typically move from: a. southeast to northwest
b. northeast to southwest. c. southwest to northeast. d. None of these choices.
According to plate tectonic theory, the San Andreas fault is a
A) convergence zone. B) divergence zone. C) subduction zone. D) transform fault.
Why is plutonic a synonym of intrusive?
A) They mean the same thing. B) Plutonic comes from the Greek god of the underworld; intrusive rocks are formed beneath the surface of the Earth. C) Plutonic comes from the Roman god of the ocean; intrusive rocks are formed in water. D) Plutonic comes from the Roman god of fire; intrusive rocks form from lava on the earth's surface.
A corona
A) is the same as a halo. B) does not touch the Sun or Moon. C) is caused by diffraction of light by cloud droplets. D) is a form of Brocken bow. E) all of the above