TERMS Lessons 1-3 (7.1/7.2/7.3) Flashcards
Atmosphere
Layer of gases surrounding the planet
Climate
the average weather condition in a region over a long period of time (30 years or more)
Greenhouse effect
where heat is trapped onto earth’s surface.
process: sun rays go to earth, some are reflected back into space and some are absorbed by the earth. greenhouse gases trap more of the sun’s heat causing global warming.
Hydrosphere
All water on Earth
Albedo
amount of light reflected off a surface
low albedo - closer to black, absorbs heat
high albedo - closer to white, reflects heat
Tectonic plate
large slabs of rock that divide Earth’s crust
Anthropogenic
changes in nature that are caused by humans
Climatograph
Graph of 30 year averages of monthly temperature and precipitation
Biome
Areas with similar biotic and abiotic components
Ecozone
Combined data on climate, geology, landscape, soil, vegetation, wildlife, water and human factors.
Ecoregion
Divisions of ecozones; areas where ecosystems are similar
Global warming
increase in Earth’s average temperature (due to rising levels of greenhouse gases).
Desertification
type of land degradation where the dryland loses its vegetation (becoming a desert)
Deforestation
clearing of forested land/wide area of trees
Weather
what the atmosphere is like over a short period of time (heat, dryness, sunshine, wind, rain)