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DIFFUSION

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The process of movement of a substance (solid, liquid or gas) form the region of higher concentration to the region of lower concentration so as to spread uniformly is called diffusion.
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Diffused Reflection

(a) What is meant by 'diffusion' ? Give one example of diffusion in gases. (b) Why do gases diffuse very fast ? (c ) Name two gases of air which dissolve in water by diffusion. What is the importance of this process in nature ?

LAKHMIR SINGH & MANJIT KAUR-THE FUNDAMENTAL UNIT OF LIFE: CELL -QUESTIONS BASSED ON NCERT QUESTION BANK (EXAMPLAR PROBLEMS IN SCIENCE)
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  2. Deaw a plant cell and label the parts which (a) Determine function a...

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