Select the correct answer.
Which scenario would be considered as natural pollution?
O A.
A person dumps used motor oil down the sink at home.
O B.
A family, which is camping, leaves its garbage behind because it is biodegradable.
OC.
O D.
A maintenance truck has a small drip of coolant that leaks on to the road as it is driven.
A person leaves the trash next to a garbage can that is full.
OE. A melting glacier picks up sediments and deposits them in a lake, causing eutrophication.