tell me 4 facts about light
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A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body. ... Also called erythrocyte and RBC.
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1) a ray of light travels very fast
2)the speed of light equals to 300000km\second
3)light is kind of energy that can move in waves.
4)It is made up of flow of small particals of energy called photons.
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