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26 . The gas used for artificial ripening of fruit is-
A. Ether B. Ammonia
C. Acetylene D. Ethylene

27 . Branch of science which deals with the study of skin of man-
A. Physiology B. Anatomy
C. Biochemistry D. Dermetology

28 . Study of bone is called-
A. Orology B. Oesteology
C. Seromology D. Geology

29 . Study of insects is called-
A. Ichthyology B. Neonatology
C. Entomology D. Anthropology

30 . Ichthyology is study of-
A. Snakes B. Lizards
C. Aves D. Fish