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Exchange of gases between the blood and the tissues of the body is called :-
Which of the following effects of auxins is of wide application :-
Which one of the endocrine glands is known as master gland?
When Iron nails are added to an aquous solution of copper sulphate, a chemical change occurs, which
of the following is not true about this reaction?
What happens when dil hydrochloric acid is added to iron fillings?
Compounds made up of carbon and hydrogen only are called
When current is circular, the associated magnetic field is
According to IUPAC recommondations, the number of groups in the long form of the periodic table is :-
Which of the following is not an example of a bio-mass energy source?
In series combination, resistance increases due to increase in
The following light which is more effective in opening of stomata
In a three pin socket (shoe) the bigger hole is connected to
Two parallel conductor carrying current in the same directions