More solar energy hits Earth every hour than we use in a year
Recommended for Middle Grades
According to the US department of energy, about 430 quintillion joules of solar energy hit the earth every hour. 430 quintillion joules means there are […]
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Recommended for Middle Grades
According to the US department of energy, about 430 quintillion joules of solar energy hit the earth every hour. 430 quintillion joules means there are […]