Which Statement About Solar Energy Is Correct

question 44

Multiple Choice

Which statement about solar energy is correct?

• A)Wind power is an indirect form of solar energy.
• B)If just 4% of the world's desert were covered in photovoltaic cells,the world's electricity needs would be met.
• C)Photovoltaic cells are becoming cheaper.
• D)Solar energy can be harnessed through active or passive technologies.
• E)All of these answers are correct.

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the individual values in a dataset deviate from the mean of the dataset.

Random Variable

A variable that can take on numerical results from a random event.

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Heating Oil

A low-viscosity, liquid petroleum product used as a fuel oil for furnaces or boilers in buildings for heating purposes.