For the composting to be efficient, what should be the nature of the organic content being used?
Options:
A .  
Completely synthetic
B .  
Product with carbon as major constituent
C .  
Partially synthetic
D .  
Synthetic polymer
Answer: Option B : B
Compost is made out of organic substances which have carbon as a major constituent. In other words, biodegradable substances are required for composting. Thus, the product should be made of biodegradable substances, usually organic.
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