In which year the solar observatory in kodikanal founded?
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When did the most luminous nova appear?
The chemical used as a ‘fixer’ in photography is 1 Borax 2 Sodium thiosulphate 3 Sodium sulphate 4 Ammonium persulphate
Which of the following roofs provide better protection against heat? 1 Cement slab 2 Asbestos sheets 3 Reinforced concrete 4 None of these
What would happen had there been no chlorophyll in the green leaves?
Which country has no sunrise?
Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire
Which are the two reactors at the indira gandhi centre for atomic research ( igcar )?
What is the Protoplasm ?
name all the density all cloth,metals,materials?
what are advantages of excess populatoin?
The recent atomic weight scale is based on 1 1H1 2 1H2 3 6C12 4 8O16
Which of the following alloys is used for making magnets? 1 Duralumin 2 Stainless steel 3 Alnico 4 Magnalium