CBSE Class 10 Science 2019 · Paper 31/1/3 · Question 1
If you could use any source of energy for heating your food which one would you prefer ? State one reason for your choice.
Answer
Solar energy (solar cooker), because sunlight is freely available, renewable and non-polluting.
Solar energy, used in a solar cooker. Reason: sunlight is freely and easily available and is renewable, and cooking with it causes no pollution.
Any other source with a correct reason also earns the mark: for example LPG (a fuel), an electric hot plate or a microwave oven, because each is easily available.
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