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Q. Mordants are substances that
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Q. Which one of the following is the major constituent of biogas
Q. Fertilisation is the process of
Q. Which of the following determines the chemical properties of an element?
Q. When Helium atom Loses electron, then it becomes
Q. Plants are dried up in winter due to frost as
Q. Ionisation energy of nitrogen is greater than that of oxygen as nitrogen has
Q. The yellow colour of human urine is due to a pigment called?
Q. What do we call the non-green heterotrophic plants of plant kingdom?
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