Most materials when thermal energy is added a)condense b)expand c)freeze d)contract

The answer tjay you should is that it would expand. 

Most materials B) Expand when thermal energy is added. For example, if you have a ping pong ball that has a dent in it and you put it in boiling water, after a few minutes the dent will disappear, meaning the ball expanded. the reason why this happened is because the ping pong ball is hollow inside and the air inside heats up and it makes the particles bounce harder against the ball's inside and that makes the ball's dent rise and disappear.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.