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What is the answer,to the correct number of significant figures,of the following calculation?
Less-Hazardous Substances
Chemicals or materials that pose a lower risk to human health and the environment compared to their more dangerous counterparts.
Plastic
Synthetic or semi-synthetic organic compounds that are malleable and so can be molded into solid objects of diverse shapes, widely used for a variety of applications.
Recycled
The method of gathering and treating substances that would normally be discarded as waste and transforming them into new items.
North America
A continent located entirely in the Northern Hemisphere and mostly in the Western Hemisphere, composed of countries like the United States, Canada, and Mexico among others.
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