The sun's energy can travel through space because _____.
A. the molecules in space are packed closely together
B. radiation is able to jump from molecule to molecule
C. heat waves do not need molecules to travel
D. convection currents in the Earth's atmosphere trap heat
none of these are technically correct, but C. is closest? the energy from the sun is radiation, which does not need molecules to travel so its actually B. and C. together? poorly worded
