Soil and Weathering
What layer is rich in nutrients and organic material?
Topsoil (A Horizon)
What forms where a river slows and drops sediment?
Delta
Air moves from ___ pressure to ___ pressure.
conduction
What slow mass movements can damage roads or houses?
creep
Which causes the fastest weathering?
Warm and Wet
What moves surface ocean water?
Wind
Which pressure system is linked to stormy weather?
Low pressure
Why is the equator hotter than the poles?
What is the major point of absorption for solar energy?
Earth's surface
What small particle can hold water well
Silt
Which way do currents turn in the north?
clockwise
What gas makes up most of the air?
Nitrogen
What kind of wave carries heat from Earth?
infrared
How much solar energy is reflected from Earth?
30% (70% is absorbed)
What pioneer species helps create soil on rock?
Why does cold ocean water near poles sink?
What kind of system brings sinking air and clear skies?
high pressure
What reflects most solar radiation?
clouds
Cool dense air sinks and moves away from the land at night
What is a land breeze?
What deepens rock cracks along a coast?
Abrasion
What landform is made from glacier "till" left behind?
Moraine
What is Earth's ability to reflect sunlight called?
As Earth loses ice, how is reflected sunlight affected?
It decreases
Rock that breaks down and forms parent rock in the C horizon.
Bed rock.