T3W3 TS Q30 – Selective High School

The effects of increased carbon dioxide emissions being released into the atmosphere are contributing to the present rise in global temperatures. Extreme temperature swings and habitat degradation are just two negative effects of the increase in global temperatures. High levels of carbon dioxide are released into the atmosphere by automobiles, which cause pollution. We should use more public transportation, such buses and trains, to combat this.

Which of the following, if true, most strengthens the above argument?

Seawater becomes more acidic as carbon dioxide levels rise. A single car emits about 5 metric tons of carbon dioxide per year. Buses or trains emit about the same amount of carbon dioxide as cars but can carry many more passengers. As the ice caps melt due to rising temperatures, polar bear habitat will eventually disappear.

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Which of the following, if true, most strengthens the above argument?