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.
Report Abuse. For one the Nubian sub saharan civilization was more advanced than europe of the middle ages, that means prior to white european contact. It was murderous european and arabs in the slave trade and killing off this and other civilizations in Africa to exploit their resources. lot of their inventions, knowledge and technology actually came from the Middle East, the Far East and to a less extent Egypt. The only civilizations known to develop independently are Egypt, Mesopotamia, China, Mesoamerica, and the Andes in South America and probably India. None in Europe.