Questions and Answers
Planet Mars - astronomy questions
1.
Mars is the .... planet from the Sun and the second-smallest planet in the Solar System after .....
2.
Mars is often referred to as the "Red Planet" because the reddish .... prevalent on its surface gives it a reddish appearance.
3.
Mars lost its magnetosphere
4 billion years ago
4.
The mean surface pressure is only .... of that of Earth.
5.
How many moons orbit Mars?
2
6.
The atmosphere of Mars consists of about 96% ...., 1.93% .... and 1.89% .... along with traces of oxygen and water.
7.
Mars orbital period equals:
686.971 days
8.
Martian soil to be slightly :
alkaline
9.
Liquid water cannot exist on the surface of Mars because
low atmospheric pressure
10.
Does Mars have permanent polar caps?
yes, two
11.
Olympus Mons and related terrain are approximately .... km across.
12.
Mars's average distance from the Sun is roughly
230 million kilometres
13.
Day on Mars lasts:
24 hours, 39 minutes
14.
Mars has two relatively small natural moons, Phobos (about .... km in diameter) and Deimos (about .... km in diameter), which orbit close to the planet.
15.
Moon on this picture is:
Phobos
16.
Moon on this picture is:
Deimos
17.
Olympus Mons is higher than Mount Everest about:
3 times
18.
The Curiosity rover, which landed on Mars in
August 2012
19.
Oportunity Mars rover landed on planet's surface on:
January 25, 2004
20.
Escape velocity from martian surface is:
5.027 km/s