strategy for reducing environmental risk?

For the first question I would suggest you put answer D, and if you don't like that then C. I say D because it is considered worse to remedy waste then to remediate waste generation. It is much easier, and considered much healthier for the environment if you go ahead and remedy pollution before it occurs as in C. In D, which is the not a strategy for reducing risk, the contamination has already occurred thus is already present. The prevention of the risk is not present anymore, so D is the answer. As well, remediating pollution after it has occurred is much worse than stopping it before it occurs, because this will take more time, moneys, and use up resources as well.

The second question's answer is definitely B. As scientific advancements have occurred, life expectancy increases and thus the pollution individuals creates automatically increases as well per person. So, B is definitely the answer.

The third question's answer is definitely true. Genetics and the environment both have an influence in diseases and health risks, but most illnesses are already within the body and inhabitant, but take environmental factors to cause the growth and showing of these factors. For example, many identical twins are very similar even if they have been split from birth. They have the same interests, act in similar ways, and even look the same. Genetics is the key factor here.

The best strategy is cooperating with NSA. Because they can record everyone's talk so you ask them to include specific anti-ecology related words into NSA recording super filters like Kill, Hide, Travel, Illegal hunting, Bury toxic waste etc. So within few hours you actually can catch any anti-ecological terrorists foreign and domestic guaranteed!