Answer
Step by step text solution for Which things retards the movement of dust particle to reach respiratory system ? by CHEMISTRY experts to help you in doubts & scoring excellent marks in Class 6 exams.
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MBD-AIR AROUND US-EXAMPLE
- What is winnowing ? Where is it used ?
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- How will you show that an empty glass bottle is filled with air ?
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- How will you show that air occupies space ?
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- What is atmosphere?
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- The mountainers carry oxygen with them because: At analtitude of more...
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- Which things retards the movement of dust particle to reach respirator...
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- Why does a traffic policeman standing on a crowded square put a mask o...
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- Why transparent window panes get faint if not cleaned regularly ?
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- Why earthworms, snails, snakes appear on earth after a heavy rain fall...
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- Is air a mixture or compound ?What are main component of air ?Explain ...
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- The percentage of CO2 in air is -
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- The percentage of oxygen in air is-
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- The colour of air is-
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- The component of air used by green plants to make their food is-
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- Which gas is needed for burning ?
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- Oxygen and Nitrogen constitute ................ of air.
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- The plants release .............. during photosynthesis.
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- Air is ............... .
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- Oxygen in air is added by-
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- Air helps in moving-
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