Which is the main energy source for the water cycle?
(F animals
G coal
(H) plants
(I)
sun

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?