Leakages in household gas cylinders can be detected because of the strong smell of ethyl merceptan mixed with LPG.
R provides the correct explanation of A.
Gandhiji withdrew the non-cooperation movement because of the violence in the Chauri Chaura outrage.
In India, due to high birth rate and due to neglect, females have a lower life expectancy than the males and although females need a better diet, they do not receive it.
India, being a democracy, it is a government run by the representatives elected by its people
When cut fruits and vegetables are kept in open, the vitamins in them get oxidised and remain of no use.
Bats can fly in the night because they can trace the obstacle in the path by perceiving the echo of the ultrasonic sound emitted by them after it is reflected by the obstacle.
Appendix, earlier used to digest raw vegetable matter, is now a vestigial organ in human body and does-not perform any function.
Inside the earth, the high temperature and pressure keeps the metals in molten state. The earth does not absorb the sun's rays but reflects them.
Haemoglobin is the blood pigment that imparts red colour to the blood.
Carbon dioxide reacts with lime water (calcium hydroxide) to form milky precipitate of calcium carbonate
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