Q16. Consider the following statements regarding asteroids: 1. Asteroids are rocky debris of varying size orbiting the sun 2. Most of the asteroids are small but some have diameter as large and 1000 km 3. The orbit of asteroids lies between the orbits of Jupiter and Saturn Of these statements:

Which is the difference between asteroids and comets? 1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky an

The group of small pieces of rock revolving round the Sun between the orbits of Mars and Jupiter are called:

Consider the following statements: A person in a spaceship located half way between the earth and the sun will notice that the: (1) The sky is jet black. (2) st

Consider the following statements: 1. The Earth’s magnetic field has reversed every few hundred thousand years. 2. When the Earth was created more than 4000 mil

Consider the following statements : 1. The albedo of an object determines its visual brightness when viewed with reflected light. 2. The albedo of Mercury is mu

With reference to India’s satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellite useful for Earth resources monitoring wher

In the northern hemisphere, the longest day of the year normally occurs in the:

On 21st June, the Sun :

Variations in the length of daytime and night time from season to season are due to :

A person stood alone in a desert on a dark night and wanted to reach his village which was situated 5 km east of the point where he was standing. He h

Electrically charged particles from space traveling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of t

Consider the following statements : 1. On the planet Earth, the fresh water available for use amounts to about less than 1% of the total water found.

Which one of the following planets has the largest number of natural satellites or moons ?

In order of their distances from the Sun, which of the following planets lie between Mars and Uranus?