Ionic bonds are found in calcite. What could this suggest about its physical properties?
A) It is bright white.
B) It is malleable.
C) It is a conductor of electricity.
D) It is a softer mineral.
Answer: D
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Transistors are
A. giving way to newer devices. B. enormous in numbers. C. relatively rare in the world of electricity. D. within all living creatures.
Which type of radiation is being emitted in the following incomplete nuclear equation: Po ? Pb +?
A) alpha
B) beta
C) gamma
D) A and B
E) none of the above
Of the following, which is most relevant to weather?
A) water B) rock C) carbon dioxide in the atmosphere D) particles in suspension in the atmosphere E) methane in the atmosphere
What is associated with reversed magnetic polarity?
A. The magnetic signal of seafloor formed with this polarity would be stronger compared to adjacent areas of the seafloor. B. There are much fewer intervals of reversed polarity than normal polarity. C. A compass needle would point south. D. All of these choices are correct.