Troposphere (hope this helps )
Answer:
Sociology and also some cultural anthropology
Explanation:
One way you could reuse tires is maybe making chairs out of them. you would have to coat them in some sort of plastic and then have a wood or metal base in the middle of the chair so you could attach the backrest and legs, then put a thin cushion above the chair. would smell terrible but it works. You could also make a bar stool, which would be way better then just a normal chair.
Answer:
Every 20,000 years, the polarity of the earth changes.
Explanation: