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J. Perkins
J.L. Baird
Jones Salk
Alb E. Sabin
The cross-section of a stem of tree has fifty rings, what is the age of the tree
The D-8 is an organization of eight _ countries.
The Daocheng Yading Airport is located in
The deepest lake of the world is
The Defence Research and Development Organization of India has developed a missile which can be launched from a submarine. What is it named ?
The discoverer of pencillin was
The disease associated with the secretion of toxin is
The dried flower buds are used as a spice in
The element first detected spectroscopically in the Suns atmosphere is
The element which is rich in most leafy vegetables is