vv asked in 社會與文化語言 · 1 decade ago




1 Answer

  • Anonymous
    1 decade ago
    Favorite Answer

    The widely accepted theory as to the formation of the universe is the Big Bang Theory.

    The Sun is now a Main Sequence star.

    A supernova marks the death of a massive star.

    The biggest planet in the solar system is Jupiter.

    The smallest planet in the solar system is Pluto.

    Electromagnetic radiation is energy waves produced by the movement of an electric charge.

    Some types of electromagnetic radiation include gammay rays, x-rays, ultraviolet rays, visible light, infrared light, microwaves and radiowaves.

    The gravitational force of a black hole is so great that even the light cannot escape from it.

    Stars are born in a region of high density called Nebula.

    The 9 planets orbit around the sun.

    Source(s): science notes
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