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प्रश्न
Tick the most appropriate answer.
Photosynthesis requires
पर्याय
heat energy
wind energy
sunlight
sound energy
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उत्तर
sunlight.
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संबंधित प्रश्न
Explain the following giving an example.
Pure substance
What role does energy play in initiating a chemical change ?
Write true or false
Deforestation is a man-made change.
Give two examples of periodic changes.
Classify the following as a physical or a chemical change.
Melting of wax
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Give a reason why – Heating a platinum wire is a reversible change but, heating a magnesium wire is an irreversible change.
What type of energy changes is associated when ice melts?
Sublimation of Iodine is a ______.
