MCQ
How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte.
- AFour, One.
- BFour, Four.
- COne, One.
- DNone of these.
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$I.$ Burning of wood
$II.$ Volcanic activity
$III.$ Combustion of organic matter
$IV.$ Fossil fuels
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