The Big Bang took place approximately ____ years ago
a. 140 billion
b. 40 billion
c. 14 billion
d. 14 million
e. 4,000
C
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The purpose of the third prong in an electrical plug is to
A. lessen voltage. B. prevent charge from flowing to the ground. C. provide a path for excess charge to the ground. D. equalize voltage.
Plants that are allelopathic
A) have very sharp spines instead of leaves. B) cannot tolerate long periods of drought. C) produce flowers very rapidly after a rain event. D) are likely to be located away from other plants.
Deformation of the Earth's crust is called ______.
a - plate tectonics b - folding c - diastrophism d - broad warping e - subduction
The Mercalli Scale is a scale from ________
A) I to XII that rates the structural damage due to an earthquake B) I to X that rates the total energy released during the main quake and all aftershocks C) 1 to 10 that rates the energy released by an earthquake D) 1 to 12 that rates the energy required for faulting to occur