Appendix, earlier used to digest raw vegetable matter, is now a vestigial organ in human body and does-not perform any function.
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.
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.
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
Leaves of plants are green because they contain the green pigment, chlorophyll. However, plants contain chromoplasts but they are not green pigments.
In India, the judiciary is completely independent of the executive. It has no interference in the affairs of the state nor can it be influenced by the government.
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