Oil pollution

Question 1

2 causes of oil pollution

Answer 1

-accidental releases e.f from oil pipeline leaks
-waste lubricating oil , such as industrial machine oil which is washed into drains or mixed with other effluents

Question 2

2 effects of oil pollution

Answer 2

-Oil causes birds feathers to stick together and lose insulating properties causing some birds to die of hypothermia
-May mask smell which is important for some species looking to find mates , etc

Question 3

3 controls of oil pollution

Answer 3

-Prevention of oil releases , recycling waste lubrication oil
-improved oil tanker operation , better shipping routes mean greater distance from shore so can deal with pollution before it reaches the shore
-Improved tanker design , double hull so damage to one hull does not guarantee release of pollution

Question 4

1 Treatment of oil spills

Answer 4

-Skimmers , rotating metal disks pick up oil that can be scraped off and stored later for disposal in incineration or landfill