The major ingredient of leather is__________________?
The major ingredient of leather is__________________?
A. Collagen
B. Polymer
C. Nucleic acid
D. None of these
The major ingredient of leather is__________________?
A. Collagen
B. Polymer
C. Nucleic acid
D. None of these
According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in____________?
A. 1 hours
B. 5 hours
C. 10 hours
D. 15 hours
A. X-rays
B. infrared rays
C. microwave radiation
D. ultra-violet radiation
A. Axiology
B. Sociology
C. Idiology
D. Criminology
A. 100
B. 400
C. 1000
D. 4000
A. Mesosphere
B. Ionosphere
C. Stratosphere
D. Troposphere