Abiotic Factors Flashcards
How does air move in global winds?
From areas of high pressure, to areas of low pressure.
What are all abiotic factors that affect biomes?
Sunlight, temperature, precipitation, water, wind/air circulation, ocean currents, soil composition, altitude
In a global wind situation, warm air _____, and cool air _____.
- Rises
2. Sinks
What causes global winds?
Uneven heating between the equator and north and south poles.
What are prevailing winds?
The most common wind direction.
What are ocean currents?
A regular movement of large amounts of water along defined paths.
Surface currents are driven by…
Wind
Deep currents are driven by…
Density differences (salinity and temperature)
In the United States, what cools the area?
The California current
In the United States, what warms our area?
The Gulf Stream.
Why does the sun heat the earth unevenly?
The earths tilt on its axis.
Air pressure and air temperature …. With altitude?
Decrease
What is rainshadow?
A region having little rainfall because it is sheltered from prevailing winds by a range of hills.
What is permeability?
The ability of water to flow through a soil (how quickly)
What is porosity?
The void or open space among/in particles that make up soil.
