Option 4 is the statement that accurately describes solar ovens. Renewable energy is used in solar ovens, which is economical, secure, and good for the environment.
One kind of solar thermal collector is a solar cooker. The thermal (heat) energy of the Sun is "gathered" and captured. Low-frequency infrared radiation is created when high-frequency visible and ultraviolet light is transformed into it.
In general, there are 3 different categories of solar cookers:
Hence option 4 is correct
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