Compared with a 2-kg block of solid iron, a 4-kg block of solid iron has the same
A. mass.
B. weight.
C. volume.
D. none of the above
Answer: D
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Seismic waves carry energy through the Earth, but where does the energy in seismic waves come from
a. Gravity b. Radioactivity. c. It comes from the potential energy stored in compressed rock held in place through friction. d. The heat energy inside Earth is converted to the energy carried by seismic waves.
For the following acid-base reaction, identify what compound is formed in the space marked. HNO3 + KOH ? ???? + H2O
A.
| KNO3 |
B.
| KOH2NO3 |
C.
| H3ONO3 |
D. KOH2
E. none of the above
Which of the following best characterizes Antarctica?
A) the Last Frontier B) the most recent member of the United Nations C) a confederation D) a pizza pie political union E) a supraneocolony
The following population pyramid is indicative of
A) a country with very few children
B) rapid growth
C) zero growth
D) slow growth
E) negative growth