In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Catch red-handed
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In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.
To spin one's wheels
Select the word with the correct spelling.
Calculate the pressure (in Pa) if a thrust of 600 N is applied to an area of 24 sq.m.
___________ is the most ecologically relevant environmental factor.