Questions

Study of classification of organisms is known as _____.

The Chairman of the National Disaster Management Authority (NDMA) is

With which country India has signed an agreement to renew the supply of Petroleum for a period of 5 years (i.e. till 2022)?

Atomic radius is measured in:

The passenger reservation system of the Indian Railways is designed by

The Android operating system is the embedded version of ________.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
Spick and Span

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