The law of conservation of energy states that energy can neither be destroyed nor created. According to this law which of these equations is correct? A. E=mc²

B. KE = PE

C. Energy in = energy out

D. Energy in = power in

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

What is the leading cause if water scarcity throughout much of the world

Apopulation of deer mice was introduced into a desert ecosystem. being dark-colored, the deer mice stood out in the sand and were easy prey for predators. over a few years, the color of the mice changed from dark brown to light brown. what role does natural selection play in this example? a. the change of color camouflaged them, which them hunt better. b. the change of color enabled them to regulate their body temperature. c. the change of color allowed them to hide better from predators. d. the change of color made their bodies tolerant to the harsh desert sand. e. the change of color allowed them to deflect the excessive heat.