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.
No it didn't. While homo sapiens first occurred in Africa, civilized people first developed their civilizations in the Near East. Points for Africa: the longest continuous civilization was that of ancient Egypt.Voxygen8 Â· 9 years ago.sker's rating. Report Abuse. Ok, first of all, whether the first civilization was in Africa or not is not relevant to whether people are African nowadays. My direct ancestors a couple of generations back came from Ireland and Finland, but I am not Irish or Finnish, I'm American.