experimental investigation
to prove that
soil contains air
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Soil contains air Air is present in the space between the soil particles. This air provides the oxygen required for respiration by roots of plants and other organisms. Sand particles are quite large.
Explanation:
Take soil and pour water over it and within few seconds you will see few bubbles. these bubbles came due to the air spaces in the soil particles. the water filled up the spaces which were earlier filled with air. now these air particles rise up as bubbles as air is lighter than water
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