Genetic radiation damage is:
a. another name for somatic damage.
b. any radiation damage to a cell.
c. radiation damage affecting reproductive cells.
d. measured in roentgens.
c
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Answer the following statement true (T) or false (F)
The force required to maintain an object at a constant velocity in free space is equal to
A) zero. B) the mass of the object. C) the weight of the object. D) the force required to stop it.
Recent evidence suggests that Mars once had a global magnetic field. Assuming this is true, which of the following could explain why Mars today lacks a global magnetic field like that of Earth?
A) Mars rotates much slower than the Earth. B) The Martian core is made of rock, while Earth's core is made of metal. C) Mars's interior has cooled so much its molten core layer no longer undergoes convection. D) Mars is too far from the Sun to have a global magnetic field.
In a conductor, what moves?
a. Electrons b. Neutrons c. Quarks d. Protons