Questions

There are two elements-calcium (atomic number 20) and argon (atomic number 18). The mass number of both the elements is 40. They are therefore known as

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

Khangchendzonga National Park is in

Which of the following is a work done by the placenta tissue in humans?

How many pairs of ribs are there in human body?

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.
_____ you work hard, you cannot succeed.

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

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