Colemanite is an important mineral of

Consider the following pairs :

Consider the following statements and select the correct answer.
I. The path of a projectile is a parabola.
II. The acceleration due to gravity at the centre of the earth is zero.
III. The gravitational constant does not have unit and dimensions.

What is the relation between the voltage "V" across the ends of a resistor "R" and the current "I" which flows through it?

Which of the following vitamins are water-soluble?

World Meteorological Organisation headquarters is located at

The expansion of e-PPS is

The first clear detection of water vapour in asteroid belt was reported by

The Vice President of India is elected by
I. The members of Lok Sabha
II. The members of Rajya Sabha
Out of these,

Arrange in chronological order:
I. Bhairon Singh Shekkawat
II. KR. Narayanan
III. Mohammed Hamid Ansari
IV. Krishna Kant