The precautionary principle is the idea that one should not undertake a new action until the ramifications of that action are well understood. for what reason would we apply the precautionary principle to switching to a hydrogen economy?

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

manifest functions are the recognized and intended consequences of any social pattern, while latent functions are those unrecognized and unintended consequences. to analyze the manifest functions of any social institution, we have to study its contribution to the continuation of a group, community, or society.