Who was the second to observe sunspots after Ibn Zubir?

1. 1. Halley
   2. Newton
   3. Galileo
   4. Albert Einstein

The biggest star in our galaxy is _____.

1. 1. Proxima Centauri
   2. Epsilon Auriga
   3. Sirius
   4. Sun

which of the following planets has almost the same mass, size and density as the earth?

1. 1. Mars
   2. Saturn
   3. Venus
   4. Uranus

Which of the following makes the planet Saturn unique in the solar family?

1. 1. It sends out very strong radio signals which sound like the noise of sea waves
   2. It is the biggest among the planets
   3. It shows phases like those of the earth’s moon
   4. There is a well developed system of rings arounds it

The largest number of natural satellites (or moons) that any one of the planets of the solar system has is _____.

1. 1. 22
   2. 60 (mid 2006)
   3. 70
   4. 75

The only planet is the solar system which rotates on its axis from East to West is _____.

1. 1. Neptune
   2. Jupiter
   3. Earth
   4. Uranus

Which of the following planets takes very nearly the same times for a rotation on its own axis as does the earth?

1. 1. Mars
   2. Jupiter
   3. Neptune
   4. Uranus

The vitamin necessary for calcium metabolism in body is _____.

1. 1. Vitamin A
   2. Vitamin B
   3. Vitamin C
   4. Vitamin D

In a normal resting man, the amount of blood pumped out by the heart per minute is _____.

1. 1. 5 litres
   2. 6 litres
   3. 4 litres
   4. 3 litres

All of the following planets have lesser diameter than the earth, except _____.

1. 1. Mercury
   2. Mars
   3. Jupiter
   4. Venus