The atmosphere of ____ contains mostly nitrogen with some methane.
a. Jupiter
b. Earth's Moon
c. Callisto
d. Titan
e. Miranda
Question 2When a large galaxy collides with a small galaxy, the smaller galaxy may be pulled apart by tidal forces.
Indicate whether the statement is true or false
Question 3Jupiter and Saturn emit ____ heat than absorbed from the Sun due to _____ is the result of____
a. excess; nuclear reactions in their liquid metallic hydrogen cores.
b. less; nuclear fusion of hydrogen to helium in their liquid metallic hydrogen cores.
c. excess; heat left over from their formation
d. less; heat left over from their formation
Question 4When two galaxies collide, they pass through each other and their stars almost never collide.
Indicate whether the statement is true or false
Question 5In what way is the rocky material of Jupiter's core different from the rocks found on Earth?
a. It is much cooler because Jupiter is further from the sun.
b. It contains more liquid water.
c. It is much hotter and denser because of the extreme pressure at the core of Jupiter.
d. It is not composed of iron and nickel because this material will float of the surface
e. It is composed entirely of ices that have frozen into a large rock like structure.
Question 6If H equals 50 km/sec/Mpc, then a galaxy with a radial velocity of 50,000 km/sec will have a distance of about 1 Mpc.
Indicate whether the statement is true or false
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