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प्रश्न
On a Sunday morning Paheli’s friend visited her home. She wanted to see some flowering plants in the nearby garden. Both of them went to the garden. While returning from the garden they also observed some flowering plants on the road side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?
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उत्तर
The air quality present in the atmosphere which includes dust and soot particles released from vehicles, factories and chimneys makes the appearance of leaves and flowers dull which are planted on the roadside areas. The dust particles present in the air get deposited on the leaves and flowers and make them look dull.
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संबंधित प्रश्न
Fill in the blanks :
_______ and ______ are the most common air pollutants.
Name three noble gases present in the air. State their one industrial use
Classify Carbon dioxide. Also give a balanced equation to prepare it.
With the help of a labeled diagram, describe a simple experiment to show the presence of oxygen and nitrogen in air using a piece of white phosphorus.
State the utility of oxygen for respiration in plants
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
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
What was the old name of nitrogen?
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
The composition of air changes slightly from place to place. Give examples.
