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प्रश्न
Photosynthesis cannot take place at night.
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उत्तर
Photosynthesis requires sunlight which is not available at night time. Therefore the process stops at night.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
State three differences between evaporation and boiling
State whether the following is physical or chemical changes.
photosynthesis —
State whether the following is physical or chemical change.
Digestion of food —
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Give the reason why the following is considered as chemical changes.
A piece of magnesium strip is dropped into a beaker containing dilute hydrochloric acid.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
