Which of the following constitutes highest percentage of Green House gases ........

General Studies (CHSL) Environment and Ecology

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Which of the following constitutes highest percentage of Green House gases?

Ethane

Methane

Carbon Dioxide

Propane

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Explanation:

A greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect on planets. The primary greenhouse gases in Earth's atmosphere are water vapor (H

2O), carbon dioxide (CO

2), methane (CH

4), nitrous oxide (N

2O), and ozone (O3). Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F),rather than the present average of 15 °C (59 °F). The atmospheres of Venus, Mars and Titan also contain greenhouse gases.