Yes and no. Mostly yes, try to avoid the highly polluted areas.
The human mind and brain are the world's most polluted areas.
It very much depends on the area; some groundwater is polluted but other groundwater is pure.
YES
Well, if you're jogging on the treadmill I don't see a different, other than maybe the impact on your knees. If you walk on the treadmill its not as good as jogging, but that is simply because its walking vs. jogging, not treadmill vs. another environment.
That is definitely not a good idea. Do not eat anything from a polluted lake.
Los Angeles Greater area is the most polluted city in the United States.
You get a polluted area.
no they are not as they are lazy
Stretching and jogging.
Yes, they are.
It has Skip protection which makes it a decent choice for jogging.
Jogging and weight lifting are good exercises.