Qn 1    Agricultural Revolution saw humanity moving onto a settled life as human labor was replaced by machines, fertilizers which did most of the work. The industrial revolution brought about the use of new energy sources, e.g., e...Environmental-History-of-Humanity …

                  Obesity in AmericaThe Center for Disease Control and Prevention (CDC) points out obesity in the United States as a national health problem being the second leading cause of mortality af...Obesity-in-America-Essay …

Birds are identified as endothermic vertebrates found in all habitats around the world. Its characteristics include; laying of hard-shelled eggs, strong but light skeleton, feathers, four chambered heart, toothless beaked jaws, and a high metabol...Essay-on-Birds:-All-About-Birds …