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Biology
Which of the following is an antioxidant ?
Algae often float on surface of water during the day but sink down during the night due to
Fossils of blue green algae were found in lime stones with the age almost as old as
Max. photosynthetic activity occurs in:
Rickets is the deficiency disease of Vitamin D, in which the affected part is the
The most serious air pollutant causing health hazard is
What is the chromosome number in a human ovum -
Which of the following is an Autotroph?
All are protozoan diseases except
Freshly passed urine has hardly any smell but when it is allowed to stand, it develops a strong ammoniacal odour owing to
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