Which of the following processes is responsible for causing rain?
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______ is the time taken by the earth to return to a given point in its orbit with reference to a fixed star.
_____________ is the number of deaths in the population during a given period.
___________ is obtained by evaporation of sea.
The name of the space shuttle, which carried the Indian born Kalpana Chawla into space was
Ilmenite is an ore/mineral of _________.
Person who is colour-blind cannot distinguish between
Name the hottest planet.