EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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lower levels of ozone in the atmosphere
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lower levels of nitrogen in the atmosphere
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higher levels of carbon dioxide in the atmosphere
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higher levels of oxygen in the atmosphere
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Detailed explanation-1: -The Earth’s average surface temperature has increased by about 1.8°F (1.0°C) since the late 1800s. Human-caused greenhouse gas emissions are responsible for the observed warming.
Detailed explanation-2: -Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.
Detailed explanation-3: -The increase in greenhouse gases from the burning of fossil fuels, agricultural activities, and deforestation, which has caused global average air temperatures to increase.
Detailed explanation-4: -EVAPORATION. A warmer atmosphere can hold more water vapor. If the climate warms by another one degree Celsius, the atmosphere would be able to hold about 7% more water vapor. Most of that extra water vapor is going to come from the earth through increased evaporation and transpiration.
Detailed explanation-5: -Over the last century, the average surface temperature of the Earth has increased by about 1.0o F. The eleven warmest years this century have all occurred since 1980, with 1995 the warmest on record. The higher latitudes have warmed more than the equatorial regions.