A. Radium dating
B. Uranium dating
C. Carbon dating
D. Deuterium dating
A. Aluminimum
B. Copper
C. Zinc
D. Lead
Zinc is used for galvanizing iron. Galvanization (or galvanizing as it is most commonly called in that industry) is the process of applying a protective zinc coating to steel or iron, to prevent rusting.
A. Tert-Butanol
B. 2,2-Dimethyl-propanol
C. Tert Alcohol
D. 1,1- Diethylethanol
A. Vitamin A
B. Vitamin D
C. Vitamin C
D. None of these
A. John Napier
B. John Doe
C. John Harrison
D. John Douglas
Ethylene plays a vital role in the natural ripening of fruits. It is a hormone produced naturally within the fruits to stimulate ripening process. Ethylene, being a natural hormone, does not pose any health hazards to consumers, the guidance note points out.
A. to form positive ions
B. to form negative ions
C. gain electrons
D. all are possible