<span>A light ray is one narrow beam of light traveling in a straight line. </span>It is the most basic element in geometrical optics. <span>A light ray is an idealized and hypothetical model of a light that is used to better explain the propagation of light. In reality, light travels as a wave and can therefore be bent.</span>
<span>The sac like fruting structures are present in the fungi belonging to the division Ascomycota. The fruting bodeis are called as ascocarp, and the spores are called as ascospores, which are non-motile.</span>
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Solar Systems contain one star in which planets orbit around it, as galaxies contain more than 100 million stars depending on what category it is. Solar systems have a Sun in the centre while galaxies have black holes in the centre, and galaxies contain dark matter in them while solar systems don't.
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