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1.Idk
2. Arteries carry oxygen rich blood and veins carry de-oxygenated blood
3.zzzzz
4. Angle of incidence is equal to angle of reflection
The incident ray, the reflected ray and the normal to the reflection surface at the point of the incidence lie in the same plane
5.During sunrise, the light rays coming from the Sun have to travel a greater distance in the earth's atmosphere before reaching our eyes. In this journey, the shorter wavelengths of lights are scattered out and only longer wavelengths are able to reach our eyes. ... Therefore, the Sun appears reddish early in the morning.
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