Questions

Which gas contributes most to the Greenhouse effect?

NaCl has ______.

If an atom has atomic number 10 and mass number 23, then what will be the number of protons and neutrons in an atom respectively?

Vitamin A is also known as _____.

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

Diminish in value over a period of time

In each of the questions, four alternatives are given for the Idiom/Phrase. Choose the alternative which best expresses the meaning of the Idiom/Phrase and click the button corresponding to it.

Strain every nerve

Select the word with the correct spelling.

"Personology" refers to _____.