__________ is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration.
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When does the sun shine vertically on the Equator ?
Which of the following sources has the largest share in power generation in India?
During the past century, the temperature of Earth has increased by ________.
A volcano that is not expected to erupt again is called
A difference between 2 longitudes at equator is nearby equivalent to _____ km.
In 2015, underground glaciers of frozen water were discovered on
What causes the mottling of the dental enamel ?