Terms : Hide Images
| 6693918214 | replacement level fertality | the number of children a couple must have to replace themselves (2.1 in developed countries) | 0 | |
| 6693993602 | Hadley cell | a system of vertical and horizontal air circulation predominating in tropical and subtropical regions and creating major weather patterns. | 1 | |
| 6694055693 | Resrvoir | an artificial or lobe where water is connected as a water supply | 2 | |
| 6694062691 | Ammonification | decomposers convert organic waste into ammonia | 3 | |
| 6694076157 | Net Primary Productivity | the rate at which biomass accumulates in an ecosystem Gross primary productivity minus the energy used by the primary producers for respiration | 4 | |
| 6694083950 | Gross primary productivity | the amount of sugar that the plants produce in photosynthesis and subtracting from it the amount of energy the plants need for growth maintenance, repair, and reproduction. | 5 | |
| 6694089545 | deciduous forest | A biome with four seasons, plants shed leaves in the fall and grow new ones in the spring. | 6 | |
| 6694095696 | Coniferous forest | Forest populated by cone-bearing evergreen trees; mostly found in northern latitudes taiga | 7 | |
| 6694113785 | Radon | A gas that arises from the earth where radioactive materials are present. | 8 | |
| 6694124494 | Kinetic Energy | Energy of motion | 9 | |
| 6694147994 | Alkaline | a basic substance; chemically, a substance that absorbs hydrogen ions or releases hydroxyl ions; in reference to natural water, a measure of the base content of the water. | 10 | |
| 6694155797 | Renewable Energy | A resource that has a theoretically unlimited supply and is not depleted when used by humans. |  | 11 |
| 6706918886 | Chlorofluorocarbons | group of chemical compounds used in refrigerators, air conditioners, foam packaging, and aerosol sprays that may enter the atmosphere and destroy ozone | 12 | |
| 6706948194 | Montreal Protocol | meeting in 1987 where a group of nations met in Canada and agreed to take steps to fight against Ozone Depletion-CFC's banned | 13 | |
| 6712604098 | Grey smog | also known as industrial smog. Smog resulting from industries burning fossil fuels, especially coal. | 14 | |
| 6712678675 | Uranium rods | This is the process happening inside of a nuclear power plant in which atoms split and heat is generated from | 15 | |
| 6712680363 | Chain reaction | A series of repeated fission reactions caused by the release of additional neutrons in every fission | 16 | |
| 6712703762 | Passive solar systems | Solar energy used directly as a heat source to reduce energy consumption | 17 | |
| 6712745115 | Active solar systems | A mechanical system that actively collects, concentrates, and stores solar energy. | 18 | |
| 6713075472 | Hyrdroelectric Power | energy source by use of trapping water with a dam and then letting it flow through a turbine, creating electric power. does not produce any greenhouse gas or pollutant emissions | 19 | |
| 6713256838 | Siltation | 20 |
