what are advantages of excess populatoin?
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In which of the following processes, is vanadium pent oxide used as a catalyst? 1 Contact process 2 Haber’s process 3 Solvay process 4 None of these
which croup is sown on the largest area in india? 2)holandric genes occur exclusiely on? 3)
The location and energy of an electron in an atom can be specified by 1 Atomic mass 2 Atomic number 3 Quantum numbers 4 None of these
The correct sequence of various regions I absorption spectrum is 1 Visible, ultraviolet, microwave, infra red 2 Infra red, gamma rays, ultraviolet, microwave 3 Ultra violet, visible, infra red, microwave 4 None of these
The variety of coal in which the deposit contains recognizable traces of the orginal plant material is 1 Anthracite 2 Lignite 3 Peat 4 Bitumen
Why is it necessary to cook food ?
Which of the following is the most stable element? 1 Uranium 2 Hydrogen 3 Oxygen 4 Lead
Who discovered radio telescope?
The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron
Which is the largest comet?
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Epoxy resins are used as 1 Moth repellants 2 Insecticides 3 Detergents 4 Adhesives