Living World

Question 1

Explain the nutrient cycle

Answer 1

plants take in nutrients to build organic matter
These nutrients are taken up when animals eat plants and returned to the soil when animals die and the body is broken down by decomposers

Question 2

Challenges in Alaska

Answer 2

Trans Alaskan pipe move oil north to south
Frozen ground= infrastructure to be put on stilts this is expensive
Some jobs are only seasonal not good for
Economy

Question 3

Rainforest distribution

Answer 3

Centred along equator
2% of earths surface
Between tropics of cancer and Capricorn
Temps rarely falls below 22
Ralrely goes above 32

Question 4

Rainforest nutrient cycle

Answer 4

Hot damp conditions= rapid decomposition
Provides plentiful nutrients easily absorbed by plant roots
Nutrients in high demand soil becomes infertile of vegetation is removed