The building from the list provided with the highest likelihood of air pollution is a tightly sealed house with an unvented water heater. The school with leaks will let air exchange happen so that isn't it, and having a carbon monoxide detector only reports existing air pollution it doesn't prevent air pollution, it could have issues but we don't know. The tightly sealed house with the unvented water heater is a near sure thing.
Answer:
They may change in such a way that antibiotics can't kill them
Explanation:
Answer: I think it does impact, but depending on the culture.
Explanation: We know that minority groups, depending on where they are, can suffer from certain indifference. From my position and in the place where I live, minority groups receive health services in the same way as a native of my country. I believe that with the passage of time the health services are more humanitarian and take into account helping people regardless of their race or color.