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BMMS 6Science Ch 9
BMMS Science Chapter 9
| Question | Answer |
|---|---|
| Climate | refers to the long-term, average conditions of temperature, precipitation, winds and clouds in an area |
| Microclimate | a small area with climate conditions that differ from those around it |
| Tropical zone | area near the equator, between about 23.5 degrees N and 23.5 degrees S latitude |
| Polar zone | extend from about 66.5 to 90 degrees in both north and south latitudes |
| Temperate zone | between the tropical zones and polar zones |
| Marine climates | relatively mild winters and cool summers |
| Continental climates | more extreme temperatures that marine climates; winters are cold, summers are warm or hot |
| Ocean currents | streams of water within the oceans that move in regular patterns |
| Windward | the side of the mountains that the wind hits first, rain or snow falls here |
| Leeward | the downwind side of the mountains; little precipitation falls here |
| Monsoons | sea and land breezes over a large area that change direction with the seasons |
| El Nino | occurs when an unusual pattern of winds forms over the western Pacific ocean |
| La Nina | typically brings colder than normal winters and greater precipitation to the Pacific Northwest and causes greater hurricane activity in the western Atlantic |
| Salinity | total amount of dissolved salts in a water sample |
| Upwelling | the movement of cold water upward from the deep ocean |
| Rain forest | forests in which large amounts of rain fall year-round |
| Savannas | tropical grasslands with scattered clumps of trees |
| Deserts | arid regions; get less than 25cm of rain a year |
| Steppe | a prairie or grassland found in the semiarid areas located on the edges of deserts |
| Chaparral | area of dense shrubs and small trees founding Mediterranean climates |
| Humid subtropical | climates that are wet and warm, but not constantly hot |
| Subarctic | lie north of the humid continental climates; summers are short and cool, winters are long and bitterly cold |
| Tundra | polar climate region, found across northern Alaska, Canada and Russia; summers are short and cool, winters are long and bitterly cold |
| Permafrost | permanently frozen soil found in the tundra climate region |
| Ice ages | time in the past when continental glaciers covered large parts of Earth’s surface |
| Global warming | gradual increase in the temperature of Earth’s climate |
| Greenhouse gases | gases in the atmosphere that trap energy |
| Ozone hole | a large area of reduced ozone |
| Chlorofluorocarbons | chlorine compounds that are the main cause of ozone depletion |
Created by:
mrpowers
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