Radish is a
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Fruits preserved in cold storage last longer because -
Which atmospheric layer contains ozone layer?
The number of neutrons in an atom is equal to the :
The method of soil conservation in which bare ground between plants is covered with layer of organic matter like straw is called?
Who was the first Indian astronomer to calculate the time taken by earth to orbit the sun?
Research designed to evaluate theories is called
Research designed to evaluate theories is called the scientific method.
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Which non-flowering, spore bearing plants have roots?