Why is the trend in chemical production volume considered a feasible control variable? Select ALL that apply.

Question

Why is the trend in chemical production volume considered a feasible control variable?  Select  ALL  that apply.

Accepted Answer

It reflects the total chemical burden on the environment.

Accepted Answer

It is publicly available worldwide.

Accepted Answer

It is often reported to regulators.

Answer

It directly measures toxicity in ecosystems.

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