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kevin paul
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It is easier to roll a stone up a sloping road than to lift it vertical upwards because
collision between fast neutrons and nitrogen nuclei present in the atmosphere
2 votes (66%)
collision between fast neutrons and nitrogen nuclei present in the atmosphere
action of ultraviolet light from the sun on atmospheric oxygen
1 vote (33%)
action of ultraviolet light from the sun on atmospheric oxygen
lightning discharge in atmosphere
0 votes (0%)
lightning discharge in atmosphere
action of solar radiations particularly cosmic rays on carbon dioxide present in
0 votes (0%)
action of solar radiations particularly cosmic rays on carbon dioxide present in
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