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17 Cards in this Set

  • Front
  • Back
greenhouse gases
Gases in the earth's lower atmosphere (troposphere) that cause the greenhouse effect. Examples are carbon dioxide, chlorofluorocarbons, ozone, methane, water vapor, and nitrous oxide.
broadleaf deciduous plants
Plants such as oak and maple trees that survive drought and cold by shedding their leaves and becoming dormant
warm front
The boundary between an advancing warm air mass and the cooler one it is replacing. Because warm air is less dense than cool air, an advancing warm front rises up over a mass of cool air
rain shadow effect
Low precipitation on the far side (leeward side) of a mountain when prevailing winds flow up and over a high mountain or range of high mountains. This creates semiarid and arid conditions on the leeward side of a high mountain range
coniferous evergreen plants
Cone-bearing plants (such as spruces, pines, and firs) that keep some of their narrow, pointed leaves (needles) all year
cold front
Leading edge of an advancing mass of cold aircol
Biome in which evaporation exceeds precipitation and the average amount of precipitation is less than 25 centimeters (10 inches) a year. Such areas have little vegetation or have widely spaced, mostly low vegetationde
Distance from the equator.
Short-term changes in the temperature, barometric pressure, humidity, precipitation, sunshine, cloud cover, wind direction and speed, and other conditions in the troposphere at a given place and time
Perennially frozen layer of the soil that forms when the water there freezes. It is found in arctic tundra
broadleaf evergreen plants
Plants that keep most of their broad leaves year-round. Examples are the trees found in the canopies of tropical rain forests
Height above sea level
Biome with enough average annual precipitation (at least 76 centimeters, or 30 inches) to support growth of various species of trees and smaller forms of vegetation
succlent plants
Plants, such as desert cacti, that survive in dry climates by having no leaves, thus reducing the loss of scarce water. They store water and use sunlight to produce the food they need in the thick, fleshy tissue of their green stems and branches
Biome found in regions where moderate annual average precipitation (25 to 76 centimeters, or 10 to 30 inches) is enough to support the growth of grass and small plants but not enough to support large stands of trees
Movement of nutrient-rich bottom water to the oceanUs surface. This can occur far from shore but usually occurs along certain steep coastal areas where the surface layer of ocean water is pushed away from shore and replaced by cold, nutrient-rich bottom water
: Local climatic conditions that differ from the general climate of a region. Various topographic features of the earthUs surface such as mountains and cities typically cause