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Welcome to the second round of the solar quiz! Check the rules from Part One here. Even if you haven't yet, you can still participate, so please comment!
The previous answers:
1. A typical solar panel weighs as much as a medium size dog.
2. When working on a severely steeped roof, your friendly neighborhood Run on Sun solar installer wears a harness.
Today's questions are:
3. The most commonly used element in a solar panel is...
4. True or False: The surface of a solar panel is cooler than the air around it when it is generating power.
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