Question

solar cookers are covered with glass plate ​

Answer 1

Answer:

As the heat from the sun goes inside the solar cooker, this heat needs to be trapped inside the cooker so that the temperature may remain enough to heat the food, so to trap this heat so that it does not escape back out from the cooker; a glass plate is kept which keeps the heat inside the cooker for a long time.

Answer 2

Answer:

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