Diatomic molecules are molecules composed only of two atom s, of either the same or different chemical element s. The prefix di-means two in Greek. Common diatomic molecules are hydrogen (H 2), nitrogen (N 2), oxygen (O 2), and carbon monoxide (CO).he bond in a homonuclear diatomic molecule is non-polar and covalent. In most diatomic molecules, the elements are nonidentical. Prominent examples include carbon monoxide, nitric oxide, and hydrogen chloride, but other important examples include MgO and NaCl.
Africa, which developed the world's oldest human civilization, gave humanity the use of fire a million and half to two million years ago. It is the home of the first tools, astronomy, jewelry, fishing, mathematics, crops, art, use of pigments, cutting and other pointed instruments and animal domestication.In short Africa gave the world human civilization.illions of years ago human life started in Africa, Australopithecus aphaeresis and Australopithecus africanus and Australopithecus robustus were all key rungs in the development of humanity.
Most historians think Africa's history started with the Bantu peoples, a group of African language speakers (Bantu languages) that originally lived in the notch of western Africa. In around 1500 B.C.E., the Bantu speakers stumbled upon the domestication of yams and bananas.Just like wheat did in Mesopotamia and Egypt and rice did in India and China, having a stable supply of food made dramatic changes for the Bantu. They began domesticating goats at about the same time, as well.The way we know this is through the Bantu languages.esson Summary. In about 1500 B.C.E., a group of Bantu language speakers discovered that they could domesticate yams and bananas. They used their new food to increase their population and then spread their knowledge to all of Africa. This would be the first event in a chain reaction.