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Chapter 7
AP Environmental Science: Mr. Adams
15
Environmental Studies
11th Grade
11/05/2012

Additional Environmental Studies Flashcards

 


 

Cards

Term
Weather
Definition
A local area's short-term temperature, precipitation, humidity, wind speed, cloud cover, and other physical conditions of the lower atmosphere as measured over days or hours
Term
Climate
Definition
An area's general pattern of atmospheric or weather conditions measured over long periods of time ranging from decades to thousands of years
Term
Climate varies in different parts of the earth mostly because...
Definition
patterns of global air circulation and ocean currents redistribute heat and precipiatation unevenly
Term
Three major factors determine how air circulates in the lower atmosphere (which helps to distribute heat and moisture from the tropics to other parts of the world):
Definition
Uneven heating of the earth's surface by the sun
Rotation of the earth on its axis
Properties of air, water, and land
Term
Cause of prevailing winds
Definition
As the earth rotates on its axis, its equator spins faster than its polar regions. As a result, heated air masses rising above the equator and moving north and south to cooler areas are deflected east or west over different parts of the planet's surface. The atmosphere over these different areas is divided into huge regions called cells, distinguished by direction of air movement. And the differing directions of air movement are called prevailing winds-major surface winds that blow almost continuously and help distribute air, heat, and moisture
Term
Currents
Definition
Prevailing winds blowing over the oceans produce mass movements of surface water
Term
Greenhouse effect
Definition
Natural warming effect of the troposphere
Term
As the warming intensifies during this century,
Definition
climate scientists expect it to alter precipitation patterns, shift areas where we can grow crops, and shift habitats for some types of plants and animals.
Term
Heat is absorbed and released more slowly
Definition
by water than by land
Term
Rain shadow effect
Definition
Low precipitation on the leeward side of a mountain when prevailing winds flow up and over a high mountain or range of high mountains, creating semiarid and arid conditions on the leeward side of a high mountain
Term
Biomes
Definition
Large terrestrial regions characterized by similar climate, soil, plants, and animals, regardless of where they are found in the world
Term
Desert
Definition
annual precipitation is low and often scattered unevenly throughout the year. During the day, the sun warms the ground and causes evaporation of moisture from plant leaves and soil. But at night, most of the heat stored in the ground radiates quickly into the atmosphere. Their soils have little vegetation and moisture to help store heat, and the skies above deserts are usually clear.
Term
Tropical deserts
Definition
Hot and dry most of the year. They have few plants and a hard, windblown surface strewn with rocks and some sand.
Term
Temperate deserts
Definition
Daytime temperatures are high in summer and low in winter and there is more precipitation than in tropical deserts. Temperate desert plants include drought-resistant shrubs and cacti or other succulents adapted to the lack of water and temperature variations.
Term
Cold deserts
Definition
Winters are cold, summers are warm or hot, and precipitation is low. Vegetation is sparse, typically.
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