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Chemical reactions could have converted simple organic compounds into for the origin of life.
Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led t
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
Which of has following group of gases contribute to the 'Green House Effect'?
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