Buddhism and Hinduism are the answers you'r looking for
The length of Shanghai is 676 kilometers or 420 mliles
The plague was spread because of the poor hygeine back in that time
The answer for your question is D
1) reduce the number of trips you take in your car
2) reduce or eliminate fireplace and wood stove use
3) avoid burning leaves, trash, and other materials
4) avoid using gas-powered lawn and garden equipment
5) buying fewer things that are manufactured using fossil fuels