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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
 Earth’s tilt and revolution cause changes in seasons  Tropics of Cancer and Capricorn mark points furthest north and south that the sun’s rays shine directly overhead at noon  This day is called the solstice (summer and winter)  Equinox: days and nights all over the world are equal in length (spring and fall)  Weather: condition of atmosphere at a particular location and time  Climate: conditions over a long period of time (Georgia has a temperate climate)  Precipitation  Cloud (water vapor) cover  Landforms and bodies of water (water heats and cools slowly, land quickly)  Elevation (higher elevations have thinner air and cannot hold moisture)  Air movement Wind: distributes the sun’s heat through convection (transfer of heat by upward motion of air)  Ocean currents: warm currents flow away from the equator and toward the poles, cold flows back to equator, they also move heat throughout the globe  Latitudes: low(tropical) always hot, middle (varies), high (polar) always cold  Elevation: temperature drops about 3.5 degrees F for every 1000 feet  Topography: cool winds on windward side, dry and warmer on leeward side   El Nino: natural change in climate off west coast of South America, easterly winds change direction, warm water and heavy rains push toward Americas, drought in Asia and Australia  La Nina: warm water blows toward Pacific Rim, precipitation in India, dryness in Americas  Can you guess which one we are currently experiencing?  Ecosystem: community of plants and animals  Biome: specific region  Forests: broadleaf (deciduous) trees/rain forest, needle leaf (coniferous) cone bearing/pine  Grasslands: flat, few trees, tropical savanna, Northern Hemisphere has steppe/prairie  Desert and tundra: extreme dry or cold climates