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Regions are groups of places with similar characteristics Physical Systems Focuses on the study of Earth's physical cultural geography (human systems) study of human activities and their relationship to the cultural and physical environments movement movement of people, goods, and ideas human-environment interaction the study of the relationship between people and their physical environment solar system Earth, eight other planets, and thousands of smaller bodies that all revolve around the sun How long does it take Earth to complete a spin? 24 Hours How long does it take Earth to complete an orbit around the sun? 365 1/4 days What are the four layers of the Earth? inner core, outer core, mantle, and crust Plate tectonics plates that float on top of liquid rock under the Earth's crust Faults cracks in the Earth's crust Weathering the process of breaking rock into boulders, gravel, sand, and soil Erosions the process of wearing away or moving weathered material Glaciers ice, mainly giant, slow-moving sheets Elevation height above sea level Mountains huge towers of rocks Hill form at the foot mountains Plains low lying stretches of flat rolling land Plateaus are flat, but have a higher elevation Valleys between mountains and hills valleys in Trenches the ocean Climate usual, certain pattern of weather in an area over a long period of time How much of Earth is made of water? 70% Is the Earth made of mostly salt water or freshwater? Salt water Strait a narrow body of water between two pieces of land Channel a wider passage between two pieces of land Freshwater sources rivers, lakes, ponds, and streams Salt water seas, gulfs, oceans, bays Evaporation the sun's heat turn liquid water into water vapor Condensation when the water vapor turns back into a liquid Precipitation water falling back to Earth from the clouds Collection when precipitation goes back to the ground How much of the Earth's water is freshwater? 2% How much of the Earth's water is salt water? 98% Weather uncertain changes in air that take place over a short period of time Currents moving streams of water Greenhouse Effect gases in Earth's atmosphere trap the Sun's heat Tropical climate warm weather: tropical rainforest and tropical savanna Savanna broad grassland with few trees Mid-latitude moderate climates: marine west coast, Mediterranean, humid continental, humid subtropical High Latitude Climate generally cold climates: subarctic, tundra, and ice cap Dry Climate receive little or no rainfall: desert and steppe Highland Climate Mountains have cool or cold temperatures year round Atmosphere the blanket of gases surrounding the Earth Lithosphere Earth's hard outer shell Hydrosphere All the water in the oceans, lakes, rivers, and glaciers Biosphere all living things Culture the way of life of people who share similar beliefs and customs Eight Traits of Culture social groups, language, religion, daily life, history, arts, government, and economy Agricultural Revolution people learned to grow food by planting seeds Industrial Revolution use machines and factories to make goods Information Revolution computers and other technology allows people to instantly send information all over the world Cultural regions different countries that have traits in common like history and language population number of people living in the world, a country, a state, or a city urban movement to cities emigrate leaving the country where they were born and move to another natural resources products of the Earth that people use to meet their needs Renewable resources they can be replaced naturally or grown again Nonrenewable they cannot be replaced Four types of economic systems traditional, command, market, and mixed Traditional Economy decisions are based on customs handed down from generation to generation Command Economy the government makes all economic decisions Market Economy individuals make their own decisions Mixed Economy mixture of all three economies Trade buying and selling goods Export trading to other countries (exit) Import buying from another country (in) tariff a tax added to the price of goods that are imported quotas number limit on how many items of a particular produce can be imported from a particular country Free trade removing trade barriers so that goods flow freely among countries developed countries countries that have a great deal of manufacturing developing countries few or no manufacturing center globalization a more connected world; a world culture transportation technology steamboats, trains, and planes communication technology telephone, cell phone, and internet interdependence when countries depend on one another for goods, raw materials to make goods, and markets in which to sell good