Ecology

Question 1

What is the main factor affecting biome

Answer 1

Latitude as the angle of the sun is perpendicular at the equator so the sun is concentrated over a small area as you get further away from the equator the angle gets larger so the same amount of un is spread over a larger area making it cooler

Question 2

What is atmospheric circulation

Answer 2

The movement of air around the globe to try and balance the temperature

Question 3

What is the tri-cellular model

Answer 3

Hadley cell - around the equator air moves anti-clockwise rise at the equator and falling at around 30 degrees
Ferrell cell - around 30-60 degrees air moves in a clockwise direction rising at 60 degrees and falling at 30 degrees
Polar cell - around 60-90 degrees air moves in an anti-clockwise rising at around 60 degrees and falling at around 90 degrees

Question 4

Why does altitude determine temperature

Answer 4

As altitude increases the air becomes less dense so it can retain less heat 100m reduces temperature by 1 degree celcius