give reason. 1)we should breathe through nose not through mouth. 2)we can see water droplets outside the wall of Glass containing ice. 3)earthworms come out of soil in rainy season. 4)traffic police wear a mask while controlling traffic 5)containers carry oxygen cylinder.
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because nose contains tiny hairs which prevents dust particles from entering into nose
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the reason we should not breath from our nose because it has hairs which prevent the unwanted particle to come inside our body and mouth takes every thing whatever comes in it way 2. we see water droplets outside the wall of the glass containing ice is because of evaporation 3. earthworms come out of soil because of the water enters the place they live and they come in search of some other place to live and other reason for this may be the temperature of the soil changes during that time 4.it is just because the pollutant coming out of the vehicles
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