Mechanical energy is defined as the sum of both the potential energy and the kinetic energy of an object. according to the law of conservation of energy, what happens to mechanical energy if the potential energy of an object decreases?

Match the order of the levels of organization in nature with the correct description. example: atoms are fundamental units of matter= level 1levels- 2,3,4,5,6,7,8.now what levels are these? population consists of organismscells consist of moleculesecosystems consist of communities interacting with there environmentmolecules consist of atomsthe biosphere consist of all ecosystems on earthcommunities consists of populationorganisms consist of cells