fertilisers

Question 1

what is a fertiliser?

Answer 1

nutrient and mineral ions

Question 2

what does organic fertiliser contain?

Answer 2

feaces
decomposing stuff

Question 3

what may lack in organic?

Answer 3

nitrates and minerals

Question 4

what does inorganic fertiliser contain?

Answer 4

powder or liquid nitrate, phosphate, and potassium ions

Question 5

disadvantages in inorganic?

Answer 5

more expensive
more easily gets washed into water causing eutrophication

Question 6

what is eutrophication?

Answer 6

excess nutrients in water

Question 7

step by step eutrophication

Answer 7

1. fertilisers leach into water
   2.nitrates cause algae to reproduce causing algal bloom
2. sunlight blocked by algae so plants cant photosynthesize
   4.bacteria decompose dead plants, and use up oxygen by aerobic respiration
3. no water left, water is anoxic, so animals die