Asample of water is being heated over a flame. what happens to the water as it is heated?

select one:
a. the volume of the water decreases.
b. the water undergoes an endothermic reaction.
c. the kinetic energy of the water molecules increases.
d. the velocity of the water molecules begins to decrease.

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Can someone me with 6 to 10 plz this is for masteries test.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.