Question

3. Investigate the cause of water contamination.​

Answer 1

Answer:

Explanation:

Contaminants such as chemicals, nutrients, and heavy metals are carried from farms, factories, and cities by streams and rivers into our bays and estuaries; from there they travel out to sea. Meanwhile, marine debris—particularly plastic—is blown in by the wind or washed in via storm drains and sewers.

Answer 2

Answer:

Most fresh water pollution is caused by the addition of organic material which is mainly sewage, but can also be be food waste or farm effluent. Other forms of fresh water pollution include micro-plastics, chemicals such as hormones and nasty toxins from household cleaning products. ...