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10
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Liquids transport through pores and the walls of cells from .................. concentration to the ................ one.
lower , higher
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10
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Heart muscle contraction and relaxation helps the heart to .............................
pump the blood all over the body organs
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10
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...................... is the resistance force originated between the object in motion and the medium touching it
Friction force
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10
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Asphalt is more rough in curved roads to ................ friction force.
increase
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seesaw
Swap points!
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gift
Win 20 points!
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gift
Win 10 points!
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lifesaver
Give 15 points!
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10
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Mention one benefit of friction force.
It helps to stop and start car motion
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