Final answer:
Environmental impact assessments are important to understand the potential harm of a human activity before implementing the policy.The correct answer is option A.
Step-by-step explanation:
The correct answer is A. Environmental impact assessments. When the effects of a human activity are poorly understood, it is important to conduct environmental impact assessments before implementing the policy.
This involves studying the environment and evaluating the potential effects the proposed project may have.
Environmental impact assessments help to identify and understand any potential harm or risks to the environment.
By conducting these assessments, policymakers can make informed decisions and take necessary precautions to mitigate any negative impacts before proceeding with the activity.The correct answer is option A.