main components of ecosystems and environments

Question 1

examples of imputs

Answer 1

• sunlight
• water
• litter/minerals blown in

Question 2

examples of processes and stores

Answer 2

• evapotranspiration
• death
• decomposition
• leaf fall
• soil
• mineral
• litter and humus

Question 3

examples of outputs

Answer 3

• erosion

- biomass

Question 4

nutrients have 3 main sources

Answer 4

1. rocks (chemical weathering releases nutrients)
2. atmosphere- carbon, oxygen and hydrogen
3. rainwater

Question 5

supply of nutrients is (unlike energy)

Answer 5

finite

Question 6

new mineral nutrients enter soil system through

Answer 6

weathering of rocks

Question 7

these inputs are balanced by losses through

Answer 7

leaching and runoff

Question 8

factors that affect speed of nutrient cycling

Answer 8

• temperature
• rainfall
• soil type
• chemical composition of leaf litter