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What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance