Friction can be reduced by changing over from:
A. Sliding to rolling
B. Rolling to sliding
C. Potential energy to kinetic energy
D. Dynamic to static
A. Sliding to rolling
B. Rolling to sliding
C. Potential energy to kinetic energy
D. Dynamic to static
A. The oil vapours can cause indoor pollution
B. Carcinogenic substances like benzpyrene are produce
C. Nutrient value of the food is lost
D. Of the loss and wastage of oil
A. It is a disease of metabolism
B. It occurs when the blood sugar level decreases
C. Proper dose (through injection) of the hormone insulin helps to keep the disease under control
D. If not controlled, it results in loss of weight
A. Trapping of solar energy due to atmospheric carbon dioxide
B. Trapping of solar energy due to atmospheric oxygen
C. Pollution in houses in tropical region
D. None of the above
A. Fall down
B. Go upward
C. Remain at the height of 2 metres
D. First go up and finally come down
A. of low atmospheric pressure there
B. Their diet and drinking water are deficient in iodine
C. Of low temperature
D. of non-availability of sufficient amount of oxygen
A. 10 to 11 Sep 2022
B. 15 to 16 Sep 2022.
C. 20 to 22 Sep 2022
D. 5 to 8 Sep 2022
A. Australia
B. Russia
C. China
D. United States