DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+
Suppose you view the Solar system from high above North Pole. Which
of the following statements about planetary orbits must be true?
Ans✓✓✓All the planets orbit counterclockwise around the Sun.
The terrestrial planets in our Solar System are ____. Ans✓✓✓Mercury,
Venus, Earth, and Mars
The Jovian planets in our Solar System are _____. Ans✓✓✓Jupiter,
Saturn, Uranus, and Neptune
Which Jovian planet does not have rings? Ans✓✓✓All of the Jovian
planets have rings
Which moons are sometimes called the Galilean moons? Ans✓✓✓The 4
largest moons of Jupiter: Io, Europa, Ganymede, and Callisto
The Cassini Mission to Saturn consists of: Ans✓✓✓an orbiter that orbits
Saturn and a probe that descended to the surface of Titan.
Which planet (besides Earth) has been visited by the largest number of
robotic spacecraft? Ans✓✓✓Mars
, Which of the following statements about Mars is NOT true?
Ans✓✓✓We could survive on Mars without spacesuits, as long as we
brought oxygen in scuba tanks
Which of the following statements about our Sun is NOT true?
Ans✓✓✓The Sun's diameter is about 5 times that of Earth
When we say that Jovian planets contain significant amounts of
hydrogen compounds, we mean all of the following chemicals except
_____. Ans✓✓✓carbon dioxide
In essence, the nebular theory holds that _______. Ans✓✓✓Our Solar
System formed from the collapse of an interstellar cloud of gas and dust.
According to modern science, what was the approximate chemical
composition of the solar nebula? Ans✓✓✓98 % hydrogen and helium
2% everything else
The terrestrial planets are made almost entirely of elements heavier than
hydrogen and helium. According to modern science, where did these
elements come from? Ans✓✓✓They were produced by stars that lived
and died before our solar system was born
According to our theory of solar system formation, what 3 major
changes occurred in the solar nebula as it shrank in size? Ans✓✓✓1. It
got hotter.