Solar system was discovered by:

A. Kepler

B. Galileo

C. Copernicus

D. Plato

(more…)

Which planet is known as watery planet?

A. Mercury

B. Earth

C. Mars

D. Jupiter

(more…)

Among the planets of the solar system, the one which has the longest period of rotation is:

A. Mars

B. Venus

C. Saturn

D. None of these

(more…)

Which of the following planet is dropped from the list of planets in 2006?

A. Neptune

B. Mercury

C. Pluto

D. Jupiter

(more…)

Which planet of the solar system spins on its axis as the fastest rate?

A. Mercury

B. Earth

C. Jupiter

D. Saturn

(more…)

The temperature of sun’s outer surface is:

A. 600 °C

B. 6000 °C

C. 500 °C

D. 5000 °C

(more…)