Topic 4- Types Of Pollution

Question 0

Where in the food chain are humans and how does pollution affect us?

Answer 0

The top and its at its worst

Question 1

Name the 8 steps of how fish are effected during water pollution

Answer 1

1) Bacteria feeds off the sewage and uses up the oxygen in the water
2) sewage and fertilisers both stimulate plant growth
3) microscopic plants such as algae has the biggest effect because they grow very fast
4) algal bloom occurs( only in ponds) this traps light for water plants to photosynthesise therefore they die
5) dead algae accumulates in the water
6) dead plants and algae provide food for bacteria
7) bacteria respires using the oxygen
8) fish suffocate due to lack of oxygen

Question 2

What types of pollution can affect us humans?(name 2)

Answer 2

1) heavy metals from industrial waste. It will enter water supplies which we consume
2) consuming pesticides

Question 3

What is bioaccumulation?

Answer 3

Where chemicals become more concentrated as they pass through the food chain

Question 4

Towards the top of the food chain what can happen to the pollutants?

Answer 4

Build up to toxic levels