Not sure how this has to do with Health but my answer would be to not buy things online at all. Nowadays it's EXTREMELY easy to get robbed of your money, by people that live across the world. Your bank account can easily be accessed through a phone, computer, gaming system, credit/debit card, check book, etc. I covered things both online and off. Stay safe!
Answer:
A in a puncture proof container
That’s true. You’re not active in your car.
Honestly he does not need all this. Instead of buying expensive workout equiptment.. get a membership at a gym and instead of buying all that fancy food just go to your local store and buy fresh produce. In my opinion it is the cheapest and really affective way to do it.
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.
