Asystem that changes spontaneously without an enthalpy change select one: a. is impossible. b. becomes more disordered. c. becomes more ordered. d. releases heat.

Which of the following is an advantage of solar energy?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?