Optical fibre works on which of the following principle of light?
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_____ mirror is used in the headlights of cars.
According to the Indus water treaty which river will be not governed by Pakistan?
Which one of the following countries is not a member of the "BRICS" group?
What does BOD5 refer to?
A universal donor has the blood group
In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.
Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.
Animals without a backbone.