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This corrosive acid is secreted by ants to drive away their enemies
Ants are attracted by the odour of this acid
This acid, in ancient times, was used to eliminate ant-hills
This acid was first obtained by the distillation of ants
The liberation of oxygen during photosynthesis is due to
The life span of RBC of man is
The limb bones of children become bent if there is deficiency ofvitamin
The litmus paper utilized in the chemical laboratories is made of
The longest bone in the human body is:
The longest period of prenatal development is the
The main active constituent of tea and coffee is
The main buffer system of the human blood is
The main constituent of haemoglobin is
The main difference between the living and nonliving is