No country experiences more tornadoes than ____
a. China
b. South Africa
c. the United States
d. Brazil
e. Russia
ANSWER: c
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Slums are usually dwelling places that are
A. Small but up to city code B. Condemned by the city but illegally occupied C. Legal but have inadequate living conditions D. On undeveloped lands in the outskirts of a city E. Illegal and built by squatters
Which of the following is true for the molecule O=C=S?
A) O=C=S is nonpolar because it contains only double bonds. B) O=C=S is nonpolar because it is linear. C) O=C=S is polar because it has a bent shape. D) O=C=S is polar because the polarities of the O=C and C=S do not cancel.
What provisions did the Kyoto Protocol make to slow global warming, and why did the United States decline to sign it?
What will be an ideal response?
Boron-10 is able to absorb neutrons and is therefore used in control rods in nuclear reactors. After B-10 absorbs a neutron it emits an a particle. What isotope is produced as a result of neutron absorption followed by a emission?
A) B-11 B) Be-7 C) C-11 D) Li-7