unit review

5 major sources of oil spills:
-natural seeps
-extraction
-transportation/tankers
-pipelines
-runoff

4 short term effects of oil spills:
-reduction of light transmissions
-reduction in dissolved oxygen
-damage to marine birds
-toxic effects to marine environments

2 long term effects:
-block taste receptors causing fish to eat harmful things
- it can concentrate poisons

Methods of cleanup:
-booms or barriers--used to contain the oil spill
-skimmers-- skim oil off surface and into boats
-sorbents--used to soak up and contain spill
-chemical dispersants--used to degrade the oil
-flames-- used to burn oil