How do some wastes get recycled? Why is it important to recycle?
Where does waste come from?
Where do wastes and waste water go when they leave our homes?
What is Envac?
What is composting?
Can you tell me about toilets?
What color is toxic waste?
What is plasma arc gasification?
What can go in a compost pile?
Is it okay to litter things that are biodegradable?
What does “biodegradable” mean?
Why do we use toilets, and what did we use before them?
How does sewage get into bayous and waterways?
Why does polluted water smell bad?
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