Part 1 Flashcards
What is the biosphere
Thin layer of earth with suitable conditions for life
The biosphere consists of …
The atmosphere, lithosphere, and hydrosphere, all living things
The atmosphere is…
The layer of gases that surrounds the earth
The atmosphere is composed of…
Nitrogen, oxygen, and small amounts of other gases
The four layers of the atmosphere are…
Troposphere, Stratosphere, Mesosphere, Thermosphere
Qualities of the Troposphere (5)
First 0-10km
Contains 80% of atmospheric gas
Temperature range from 15C to -60C
Only part of atmosphere that can support life
Where most weather occurs
Qualities of the stratosphere…(3)
10-50km
Contains the ozone layer
Temperature ranges from -60C to 0C
Qualities of Mesosphere (2)
50-80km
Temperature ranges from 0C to -100C
Qualities of the thermosphere
80-500km
Contains very little gases
Temperature ranges from -100C to 1500C
The hydrosphere is…
All the water on earth (solid,liquid,gas)
The lithosphere is…
Solid portion of earth that sits above the earths mantle
Qualities of the Lithosphere
- Composed of rocks, minerals, and elements
- Extends up to 100km below the surface
- Warmed by the sun and molten from earths mantle
What is solar energy
Radiant energy transmitted as electromagnetic waves
Insolation is..
The amount of solar energy received by a region on earths surface
Insolation is affected by…
Time of year, angle of inclination, length of daylight, clouds, atmospheric dust, and the albedo effect
The angle of inclination is…
The degree that the earths poles are tilted from the perpendicular plane of orbit.
The angle of inclination…
The angle between a ray falling on a surface and the line perpendicular to that surface
Increased angle of incidence means..
Solar energy is spread out over a greater and the region receives less insolation
The albedo of a surface is …
The percentage of solar radiation it reflects
Average albedo for earth is..
30% or 0.30
Each region of earth has a different albedo value depending on its…
Surface features
The albedo of the ocean is very
Low
Albedo can vary with the
Seasons
Cloud cover is…
Clouds reflecting solar radiation resulting in cooler temperatures on cloudy days