Question

select the word that means grinding into dust.
to protect elephants from being killed for their tusks, many governments have signed international agreements proscribing the sale of elephant ivory. people caught importing or exporting ivory or poaching the elephants are arrested, and the illegally traded ivory is destroyed with a rock crusher. by pulverizing the ivory, the government renders it worthless, keeps it out of the hands of customers, and makes the point that trading in illegal ivory isnt tolerated.
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Explanation:

The text mentions that illegal ivory is destroyed with a rock crusher and the word "pulverizing" is used right after. "Pulverizing" means grinding into dust.

Answer:

Pulverizing