Environmental Science
The aurora is produced by:

Burning oxygen caused by the intense sunlight at high altitude
Fast-moving charged particles colliding with air molecules
Reflections of sunlight by polar ice fields
Scattering of sunlight in the upper atmosphere
The combination of molecular and atomic oxygen to form ozone

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Environmental Science
Which of the following is not a reason why water warms and cools much more slowly than land?

Water has a higher heat capacity
A portion of the solar energy that strikes water is used to evaporate it
Solar energy penetrates more deeply into water
It takes more heat to raise the temperature of a given amount of soil 1oC than it does to raise the temperature of water 1oC
Heat energy is mixed in a deeper layer of water

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