Across
- 3. When pollution can occur both naturally, accidentally and intentionally.
- 5. What pollution can cause algal blooming if they contaminate rivers, lakes and coastal areas?
- 7. When bacteria, protozoa and viruses can infiltrate water supplies.
- 8. It comes from our sinks, showers, and toilets (think sewage) and from commercial, industrial, and agricultural activities (think metals, solvents, and toxic sludge).
Down
- 1. When there's algal blooms then what kind of pollution can occur?
- 2. Improperly discarded waste, such as fragments of plastic, rubber or other manmade materials, can find themselves into water sources and persist for a long time, they simply float on its surface and prevent oxygen and sunlight from penetrating below.
- 4. The pollution when pesticides and fungicides used in farming affect the underground rivers.
- 6. What kind of pollution is when chemicals infiltrate water sources?