What is the FOUR DOG DEFENSE?
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2:
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The FOUR DOG DEFENSE explains the delay tactics employed by industry to keep their products in the marketplace: My dog doesn't bite. Industry denies their product is harmful and actively discredit any study or researcher that says otherwise.

answer; i believe that the correct answer is (d); // supercontinent

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.