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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
Changes in which only ______ properties of a substance change are called physical changes.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Photosynthesis cannot take place at night.
State the various conditions that favour the process of evaporation.
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
What is a physical change ? Give two examples of physical changes.
Classify the following as a physical or a chemical change.
Burning of paper
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Select the chemical changes from the following list of changes
Rotting of eggs.
Gas exists in three states as solid, liquid, and gas.
