1. The mass of carbon dioxide produced daily by all 10 Riverwood High School buses is 1 kg.
2. 0.40 liters of fuel are consumed daily by buses idling at Riverwood High School.
3. In a 180-day school year, 180 kg of carbon dioxide would be released into the atmosphere by these buses while idling. On the other hand, 72 L of fuel would be consumed.
4. Atmospheric CO2 levels have increased by about 30% since 1800 due to clearing forests. Also, combustion of cuttings and scrap timber, and the burning of fossil fuels has to do with these atmospheric CO2 levels increasing.
5. No, because enough fossil fuel gas is produced naturally on its own.
6. The school bus-idling policy may seem necessary to some people in order to preserve the atmosphere. It also may seem necessary to prevent pollution.
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