Why do we need to be familiar with the different evidences in a chemical change?

384400 km equals how many miles? What is a bony growth in ear? How do shallow rooted plants raise the water table? How does the process of meiosis relate to the way in which a child resembles but it not an exact copy of his or her parents? Does 2 short stem alleles mean the offspring is short? The Permian-Triassic extinction 250 million years ago wiped out about ninety percent of Earth's animal species. Some scientists are predicting a sixth mass extinction in the future due to A) acid rain? What does the adding of salt and sugar to foods do? How does I.O.C decide what country is next? What is the adjective of purity? What are the Three puzzling occurrences theory of continental drift? Is a temperate climate close or far from the equator? What happened to Gems TV? What does the Equator mean? What special features are formed when strike slip faults occur? Is Bunsen burner a common source of heat? What is the function of striping wire? What is the basic equation game theory? How does the process of crystal settling occur? Why does the anatomic position require the hands to have palms facing outward? What is the place where controlled nuclear fission reactions take place?