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The presence of air bubble in blood stream is dangerous to life because……………….?
The Branch of science concerned with the interrelationship of organisms and their environments is called as……….?
Which of the following theory explains the relationship between the growth in food supply and in population?
Which of the following tax systems will help to reduce economic inequalities in India?
………………….is a raised embankment along a watercourse which may occur naturally through sedimentation during overflow of the channel or may be man-made to prevent flooding.
The tides in the sea are primarily caused due to which of the following reason?
The first printing press in India was brought by whom?
Khadar and Bhangar are the soil-types belonging to……………...?
The Buxa Tiger Reserve in West-Bengal is seriously threatened by………………?
Which of the following combination of river and dams is not correctly matched?
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