Pollution

Question 1

what has lead to a huge to the production of huge industrial waste and pollution

Answer 1

population increase

Question 2

what contributes to the pollution of the atmosphere

Answer 2

1) power stations

2) cars

Question 3

what contributes to the pollution of waters

Answer 3

1) Sewage and Toxic waste produced by industrial practices

2) excess fertilisers from the agricultural industry

Question 4

what contributes the pollution of the land

Answer 4

1) Toxic Herbicides and pesticides used in farming
2) Buried nuclear waste and household waste
3) Littering

Question 5

give a reasons for why the human population is expanding

Answer 5

1) Modern medicine as it has a major role in reducing the amount of deaths by disease
2) Advancements in the agricultural industry due to its merge with scientific research it has stopped worldwide hunger

Question 6

what is Eutrophication and when does it occur

Answer 6

Eutrophication is when the availability of nitrates in the water increase. This happens when untreated sewage or excessive fertiliser enters water sources from the land

Question 7

what are the two consequences of Eutrophication and what are the effects and what do they lead

Answer 7

1) Increases the rate of respiration of decomposers - means that producers decompose quicker which leads to a lower level of dissolved oxygen in the water. organisms that require oxygen die as they cannot respire
2) Increased growth of producers - very fast growth spurts of algae is common blocking sunlight