Photovoltaic cells are ________
A) devices that directly convert fuel to electrical currents
B) devices that directly convert sunlight to electrical currents
C) devices that derive energy from plant material
D) batteries that derive energy from plant material
E) batteries that fuel automobiles and buses
A
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What generally causes earthquakes?
A) break-up of the continents B) motion of tectonic plates C) the release of radioactivity from Earth's interior D) global warming
During its initial formation by the accretion of particles, the young Earth was ____
A) shrouded in a thick atmosphere B) density stratified with a core, mantle, and crust C) likely chemically homogenous throughout D) completely covered by an ocean
The hydrologic cycle is the movement of ____.
A. carbon B. hydrogen C. hydrocarbons D. carbohydrates E. water
Choose the statement that does NOT correctly describe the function of the corresponding sensory receptor.
What will be an ideal response?