The possibility of life in a Europan ocean probably rests on the question of
A) whether there is enough energy in a useful form to support biology
B) whether there is enough water present
C) whether there is enough raw materials to build biological molecules
D) the level of salinity present
A
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Power: A battery supplies 6.0 mA to a 12-? resistor for 1.5 h. How much electric energy does this resistor dissipate in this time?
Fill in the blank(s) with the appropriate word(s).
What terrestrial world is shown in this visible-light photo?
A) Venus B) Earth C) Mercury D) Mars
A surface on which all points are at the same potential is referred to as
A) a constant electric force surface. B) a constant electric field surface. C) an equipotential surface. D) an equivoltage surface. E) a dielectric surface.
What is the difference between a mineral and an element?
What will be an ideal response?