Physics
Planets are

luminous heavenly bodies that twinkle
luminous heavenly bodies that do not twinkle
non-luminous heavenly bodies
luminous heavenly bodies revolving around a star

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Physics
Which of the following events occurred first ?

Marconi first tranmitted a wireless signal
Max Planck unveiled the Quantum Theory
Albert Einstein propounded the General Theory of Relativity
Madame Marie Curie became the first woman Nobel Prize winner

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