A friend says that changing electric and magnetic fields underlie the production of light.
A. Find a new friend.
B. Agree with your friend.
C. Disagree with your friend.
D. none of the above
Answer: B
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The amount of current produced by electromagnetic induction depends on the
A. amount of induced voltage. B. resistance of the circuit to which it is connected. C. both of these D. none of the above
Mountain ranges that are made up of many folded mountains are usually produced by
A) tectonic compression. B) tectonic tension. C) uplifting along fault planes. D) magma rising up from Earth's interior.
The ________ are the largest and most abused social minority in Japan
A) keiretsu B) Ainu C) burakumin D) Shinjuku
All oceans, ice, and freshwater sources are included in Earth's _____
a. lithosphere b. hydrosphere c. biosphere d. atmosphere e. exosphere