Questions

The oceanic crust mainly consists of silica and __________.

Which   one   of   the   following   is   not   a semiconductor?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

More than thirty years have now passed ______ I had my first flight.

ISRO built India's first satellite known as _____.

Under Article 352 of the Constitution of India, an emergency can be declared if security of any part of India is threatened by 1.war2.external aggression3.armed rebellion4.internal disturbanceSelect the correct answer using the code given below.

According to Central Pollution Control Board (CPCB), particulate size _______ micrometers or less in diameter are responsible for causing the greatest harm to human health.

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.

The policeman carries a baton whenever he goes on a round.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

We wouldn't want them to think we (doing) anything immoral.