hey all, i need to know how a sponge works. Or a candle wick, or even a tree-root for that matter. What causes liquid to be absorbed ( against gravity ) into a substance (like a sponge, etc..) . What energy or process causes this to happen?

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hey all, i need to know how a sponge works. Or a candle wick, or even a tree-root for that matter. What causes liquid to be absorbed ( against gravity ) into a substance (like a sponge, etc..) . What energy or process causes this to happen?

Physics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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simply it is the capillary rise and surface tension which does the job. Sponge has got tiny pores through which water seeps in by capillary rise........
there are some other cohesive forces which are acting within the liquids (surface tension for instance). This helps them to defy gravity at times...
They have holes. Stuff fits into the holes until the holes are full.

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forces acting against gravity include capilary rise(due to surface tension), osmotic pressure since the concentration of water is more in the soil compared to the cell of roots.

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