Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative
Assertion(A) : Tamil Nadu gets most of the rainfall in winter.
Reason (R) : Tamil Nadu gets rainfall from retreating monsoons.
Rainfall in Tamil Nadu is caused by the retreating monsoons which occur in winter.
Assertion (A) : Leakages in household gas cylinders can be detected.
Reason (R) : LPG has a strong smell.
Leakages in household gas cylinders can be detected because of the strong smell of ethyl merceptan mixed with LPG.
Assertion(A) : When common salt is kept open, it absorbs moisture from the air.
Reason (R) : Common salt contains magnesium chloride.
Magnesium chloride present in common salt is a deliquescent substance i.e. it absorbs moisture from the air when kept in open.
Assertion (A) : Himalayas once laid under the sea.
Reason (R) : Fossils of marine creatures are traced on the Himalayas.
Himalayas are the young fold mountains that at one time are believed to lie inside the Tethys sea. This is evident from the recovery of fossils of marine creatures on its peaks.
Assertion (A) : When the bus starts, the person inside it falls forward.
Reason (R) : The bus pushes the man forward.
When the bus starts, the person inside it falls backward because the bus moves forward but due to the property of inertia, the man tends to be in the initial Mate of rest.
Assertion (A) : a Vaccines prevent diseases.
Reason (R) : Vaccines must be given to children.
Vaccines prevent diseases by developing immunity inside the body and vaccines must be given to children to build in them a resistance against diseases.
Assertion (A) : a Leaves of plants are green.
Reason (R) : Plants contain chromoplasts, the green pigment.
Leaves of plants are green because they contain the green pigment, chlorophyll. However, plants contain chromoplasts but they are not green pigments.
Assertion(A) : In India, the judiciary is independent of the executive.
Reason (R) : Judiciary favours the government and helps in the implementation of its plans.
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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