Is Chalk Environmentally Friendly? The Pros and Cons
Chalk is often seen as a harmless classroom staple. But is this common teaching tool actually environmentally friendly? Here’s a look at the pros and cons. Is Chalk Environmentally Friendly? Chalk can be considered environmentally friendly in moderation. Pure magnesium carbonate chalk is non-toxic and biodegradable. However, mining chalk ingredients harm habitats, and excess chalk …
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