| A | B |
|---|
| currents | these circlulate heat between cool and warm places in the atmosphere and ocean |
| middle latitude | marine west coast, humid subtropical, Mediterranean, and humid continental are all classified as this type of climate |
| leaching and erosion | factors that can cause the fertility of soil to decrease |
| high to low | wind travels from this kind of pressure |
| plant energy | this is passed through the food chain |
| front | this is created when a large amount of cold air encounters a large amount of warm air |
| nutrients | this promotes growth and is found in water, light, and soil |
| middle-latitude climates | are characterized by warm or hot summers and cool or cold winters |
| Australia, Africa, and India | these areas contain large steppe areas |
| air pressure | the weight of air |
| subarctic | the type of climate found in inland areas of Asia, North America, and Europe |
| plant communities | this is affected by sunlight, soil, and moisture |
| tundra climate | creates permafrost |
| topsoil | includes insects, plants, and humus |
| photosynthesis | process by which plants convert sunlight into chemical energy |
| plant communties | plant groups that live together in the same area |
| steppe climate | located between desert and wet climate regions |
| plant succession | process of one plant group replacing another |
| subsoil | level of soil that is reached by the deep roots of plants |
| currents | large streams of ocean water |
| high-latitude climates | subarctic, tundra, and ice cap |
| low-latitude climates | humid tropical and tropical savanna climates |
| broken rock | the lowest layer of soil consists of this |
| sun's energy | creates day, night, and temperatures on Earth |
| dry climates | includes both the desert and steppe climates |
| highland | the type of unusual and diverse climates that mountains are know for |
| humid tropical | the type of climate that the rain forests of Brazil, Indonesia, and the Congo have |
| ecosystem | made up of the living and nonliving elements of an environment |
| energy | this is created by the sun and is stored in buildings, land, air, and water |
| barometer | this instrument measures air pressure |
