Princeton's WordNet (2.25 / 4 votes) Rate this definition: unit of measurement, unit (noun). any division of quantity accepted as a standard of measurement or exchange. the dollar is the United States unit of currency; a unit of wheat is a bushel; change per unit volume. unit (noun).nit. 1. Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organization. 2. An organization title of a subdivision of a group in a task force.
Oxygen can be found on most of the earth and is needed by many living beings. Our atmosphere is composed of about 20% oxygen. The element oxygen (O2) is found in water (H2O),â¦ which is made up of 2 parts Hydrogen and 1 part oxygen. It is also found in rust and metal ores, as well as in many different minerals. Another place is anywhere there are green plants or trees.
Properties of Water--Notes Water is a molecule made up of two hydrogen atoms and one oxygen atom. It has the formula H 2 O. Whenoxygen and hydrogen combine (H-O-H) they form a v-shaped triangular molecule.While water moleculesare electrically neutral, the oxygen atom holds a small negative charge and the two hydrogen atoms holdsmall positive charges.his makes avery stable âsaltyâ water molecule.This property of water allows for the transport of nutrients vital to life in animals and plants.A drop of rainwater falling through the air dissolves atmospheric gases. When rain reaches the earth, itaffects the quality of the land, lakes and rivers.