Approximately ________ different minerals are known
A) 44
B) 440
C) 4,400
D) 440,000
E) 4,400,000
Answer: C
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In bombarding atomic nuclei with proton "bullets," the protons must be accelerated to high energies to make contact with the target nuclei
A. because the target nuclei are so small. B. because the target nuclei are positively charged. C. in order to penetrate through the electrons that surround each target nucleus. D. because the target nuclei are negatively charged.
The Silk Road connected
A. China and India B. New York and Chicago C. China and Rome D. London and Paris
Explain how geologists calculate the distance between the epicenter of an earthquake and a given
seismograph. What will be an ideal response?
Which of the following countries has the most nuclear power plants?
A) Canada B) Sweden C) France D) United States E) Russia