Multiple choice questions XXXI — task. Science CBSE, Class 10.

PDF chapter test TRY NOW

1. According to one of the most accepted theory the earth atmosphere before any life has originated consisted of water vapour, hydrogen, ammonia and

oxygen
carbondioxide
nitrogen
methane

2. Origin of life is due to

God’s will
chemical evolution
spontaneous generation
effect of sun rays on mud

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content