(?)2 + 8.113 = 28.92 – 73.03
(?)2 + 83 = 292 – 73 (?)2 + 512 = 841 – 73 (?)2 = 768 – 512 (?)2 = 256 ? = 16
Dry powder fire extinguishers contain
Electric bulbs are filled with :
Water gas is the mixture of
What is the most commonly used Substance in fluorescent tubes?
Black lung disease occurs in people working in
Petroleum is a mixture of-
The Bhopal tragedy was caused by the gas
What happens to the weight of Iron, when it rusts?
