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opossum
The manufacturing of iron from ironore involves the process of
The mass of a star is two times the mass of the Sun. How it will come to an end -
The mass of water vapour per unit volume of air is known as
The mass-energy relation is the outcome of
The material used in solar cells contains
The max. fixation of solar energy is done by
The melting point of copper is
The members of a homologous series have
The mercury sodium street lamps light up as of:
The metal extracted from Bauxite is