Day 2: Pre-session quiz – PBCs

This passage is a part of an official question. 

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One variety of partially biodegradable plastic beverage container is manufactured from small bits of plastic bound together by a degradable bonding agent such as cornstarch. Since only the bonding agent degrades, leaving the small bits of plastic, no less plastic refuse per container is produced when such containers are discarded than when comparable nonbiodegradable containers are discarded.

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Please answer the following questions based on your understanding of each sentence.

Sentence 1: One variety of partially biodegradable plastic beverage container (PBC) is manufactured from small bits of plastic bound together by a degradable bonding agent such as cornstarch.

(Let’s call ‘partially biodegradable plastic beverage container’: PBC)

Sentence 2: Since only the bonding agent degrades, leaving the small bits of plastic, no less plastic refuse per container is produced when such containers are discarded than when comparable nonbiodegradable containers (NBC’s) are discarded.

(Let’s call ‘nonbiodegradable containers’: NBC’s)