<em>Chemical waste discharged from an oil refinery.</em>
Explanation:
- Waste from a landfill is on ground, normaly not on the water. Also a landfill isn't on flat land most of the time and they normaly burn waste.
- Black smoke being released from a large truck doesn't affect water at all, the only thing it affects is the air. Which is air pollution.
- Oil refinery's dump waste into bodies of water. Refinery's tend have pipes connecting to bodies of water so, when toxic waste is disposed it's normally taken to ponds/lakes/rivers/oceans.
- Particculates from buring fossil fuels does not affect bodies of water, it affects the air. Which is air pollution.
