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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.
पर्याय
True
False
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उत्तर
True.
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Suggest five measures to prevent air pollution.
Write down the composition of three main gases present in air by volume.
State the utility of oxygen for respiration in living organisms
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
Name the following:
The product formed when phosphorus burns in oxygen.
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
______ is necessary for all acids.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
