The sun is a primary source of energy that drives all biochemical cycles on earth which statement best describes how the suns energy powers the water cycle A plants require energy from the sun to perform photosynthesis B The suns heat reflects of ice sheets near the polar caps reducing the overall temperature of earth C heat from the sun drives evaporation turning water on earth surface into water vapor DEnergy from the sun provides the warmth necessary for cold blooded animals to survive

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

What can be found in the ionosphere

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?