True or false.
1. Sawage is a liquid waste which causes water and soil pollution.
2. Wastewater is treated in the sewage treatment plant.
3. By products of wastewater treatment are sludge and biogas.
4. Treatment plants reduce pollutants in wastewater to a level where nature can take care of it.
5. We should not defecate in the open.
Class 7 science chapter 18
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Answers
Answered by
1
Answer:
1 True
2 true
3 false
4 true
5 true
Answered by
0
Answer: all five are true.
Explanation:
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