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प्रश्न
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
विकल्प
True
False
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उत्तर
True.
संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
Briefly state the importance of Water vapour.
Classify Carbon dioxide. Also give a balanced equation to prepare it.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
The diagrams below represents an experiment to show the presence of a component of air.
- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The mesosphere in the atmosphere, contains most of the air, fit for respiration
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
_____ gas turns lime water milky.
The composition of air changes slightly from place to place. Give examples.
A ______ gas that is used to remove carbon impurities from the steel.
