Alan Rock's Trivia!

Questions:

1) What are the only two planets in our solar system without moons?

2) Comets have three main parts: the nucleus, tail and what else?

3) What year was the first postage stamp introduced?

Answers:

1) Mercury and Venus

2) The third part of a comet is called its "coma."

3) The world's first postage stamp, the "Penny Black," was from Great Britain. It featured the image of Queen Victoria and was introduced in 1840.