Advertisements
Advertisements
Question
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Advertisements
Solution
Carbon dioxide is essential for photosynthesis by which green plants prepare their food. It minimises heat loss by radiation. Thus, it balances the temperature on earth.
APPEARS IN
RELATED QUESTIONS
Briefly state the importance of Oxygen.
Briefly state the importance of Carbon dioxide.
Classify Water. Also give a balanced equation to prepare it.
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Give a reason why nitrogen is filled in food packets and not oxygen.
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
Compare respiration and combustion-both involving oxygen of the air.
What is the source of carbon dioxide in air?
What happens if the percentage of oxygen in the air reaches to 70%?
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
