Environmental Science
The combination of nitrogen oxides and hydrocarbons in the presence of the sunlight causes

Smog
Ozone hole in the atmosphere
Global warming
Acid rain

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Environmental Science
Which of the following helps to explain why even though northern latitudes experience 24 hours of sunlight on June 22, they are not warmer than latitudes further south?

Increased cloud cover reflects solar energy in the northern latitudes
All of these
Solar energy is spread over a larger area in northern latitudes
Some of the sun's energy is reflected by snow and ice in the northern latitudes
Solar energy is used to melt frozen soil in the northern latitudes

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