7. A biodegradable is a material/substance that____________
A. Can be decomposed by bacteria and fungi into simpler forms.
B. Cannot be decomposed or dissolved naturally.
C. Has substantial or potential threat to public health or the enviroment, e.g. worn out batteries.
8. A non-biodegradable is a material that________
A. Is compostable
B. Cannot be broken down by microorganisms, e.g. bacteria and fungi, into simpler forms.
C. Has substantial or potential threats to public health or the enviroment, eg. worn out batteries.
9. Hazardous wastes are materials that__________
A. Have substantial or potential threats to public health or the enviroment, eg. worn out batteries
B. Are recyclable
C. Can be decomposed naturally
10. Composting is a natural process by which organic wastes_____________
A. Cannit turn into valuable fertilizer
B. Retain their original composition.
C. Are broken down by microorganisms, e.g. bacteria and fungi, into simple form.
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Answer:
7.A 8.b 9.A. 10.c
Explanation:
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