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प्रश्न
The component of air used by green plants to make their food, is ______.
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उत्तर
The component of air used by green plants to make their food, is carbon dioxide.
संबंधित प्रश्न
What is nitrogen-fixation?
Briefly state the importance of Nitrogen.
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
Give a reason why water droplets appear on the outer surface of a tumbler containing ice.
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
What is the percentage of nitrogen in air?
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
What is the presence of harmful substance in the air called?
Observe the picture given in figure carefully and answer the following questions.
- What is covering the nose and mouth of the police man?
- Why is he putting a cover on his nose?
- Can you comment on air quality of the place shown in the figure?
