| A | B |
|---|
| latitude | imaginary lines that circle the earth |
| regions | areas that share common features |
| earthquakes | powerful forces produced by movements along faults inside the earth |
| water cycle | movement of water from oceans to the air to the ground and back to the oceans |
| climate | a region's usual weather over a long period of time |
| tropical | climates of areas along the equator from 30 degrees north to 30 degrees south |
| culture | way of life of a group of people who share similar beliefs and customs |
| urbanization | movement by people from rural areas to cities |
| natural resources | things in the environment people use to meet their needs |
| subsistence farming | growing only enough food to feed yourself |
| map grid | helps you find the absolute location of a place |
| Equator | divided the earth into two hemispheres |
| environment | people change it when they build roads or dig tunnels through mountains |
| seasons | caused by earth's tilt and revolution around the sun |
| sun | made up of very hot gases |
| 365 1/4 days | length of one year |
| hurricanes and typhoons | caused by warm wind and water currents |
| Mediterranean | climate found in Italy, Spain, and Greece |
| erosion | landforms are worn away by water, wind, and ice |
| Asia | largest and most populated continent |
| axis | imaginary line throught the earth |
| conservation | the careful and planned use of the earth's resources so they are not wasted |
| core | the very hot center of the earth |
| famine | occurs when a group of people have a lcak of food |
| greenhouse | effect scientists fear will raise the earth's temperature |
| language | means through which people communicate and share information |
| permafrost | layers of soil that remain frozen year-round |
| pesticides | chemicals that farmers use to kill insects |
| salt | type of water found in the earth's oceans |
| summer solstice | the day with the most hours of sunlight and fewest hours of darkness |
| mid-latitudes | region with the greatest variety of climates |
| solar system | includes the Earth, its moon, and other planets |
| traditional economy | economic decisions are based on customs or beliefs |
| map grid | helps find the location of a place |
| weathering | breaks surface rocks into gravel, sand, or soil |
| market economy | based on free enterprise |
| Pacific Ocean | largest and deepest ocean |
| Southern Hemisphere | has wummer when it is winter in the north |
| dialest | local form of a language that differs from the main language |
| groundwater | source of most of the earth's freshwater |
