….…is used to measure the moisture content of soil in building construction.
a) Americium-241
b) Iodine-131
c) Carbon -13
d) Californium-252
….…is used to inspect airplane luggage for hidden explosives.
a) Iodine-131
b) Americium-241
c) Californium-252
d) Carbon -13
….…is used in cloth washers to measure dust and pollutant levels.
a) Krypton-85
b) Carbon -13
c) Americium-241
d) Iodine-131
Atomic number of carbon is……..…….
a) 6
b) 8
c) 7
d) 5
Melting point of water is ………oC
a) 0.00
b) 20.03
c) 100
d) 1.105
Boiling point of water is ………oC
a)1.105
b) 100
c) 0.00
d) 20.03
