Europa, a moon that orbits Jupiter, is quite different from Earth’s Moon. One characteristic it shares with Earth’s Moon is that Europa– Select one:contains water.highlight_offorbits a planet.highlight_offis covered in ice.highlight_offhas an atmosphere of oxygen.

What makes Europa interesting to scientists?Group of answer choicesIt has a thick atmosphereIt has a liquid water ocean under its surfaceIt has many volcanoesThey have discovered people living there.

Teresa is studying the Solar System. She learns that Jupiter has 18 named moons as well as many small unnamed ones, and that Earth has just one moon. Which of the following best explains why Jupiter has so many more moons than Earth?Group of answer choicesJupiter has a much greater mass, and therefore a greater gravitational pull, than Earth.Jupiter has a thicker, denser atmosphere than Earth, and it condenses rock particles to form moons.Jupiter is so much colder than Earth that clumps of ice form moons in its upper atmosphere more readily.Jupiter is much farther away from the Sun than Earth, so it attracts more moons.

1.Question 1The existence of an ocean on Europa has been established from several different lines of evidence. First, spectroscopy of the surface shows that water ice is present. Second, gravitational measurements show that the upper layer of Europa is low density. The third line of evidence is the most convincing. What is this most convincing line of evidence?1 pointElectric currents within the ocean induce magnetic fields which have been measured.Many geological features suggest the presence of liquid underneath the ice.Europa has definitive evidence of plumes of water coming from the interior.When the surface ice shell of Europa flexes due to tidal forces, the magnitude of the effect is much larger than it would be for a thick solid shell.The faint hum of whale songs can be heard coming from underneath the iceEuropa has an oxygen atmosphere

Which of the following statements is not a description of Earth's moon? The moon has a very thin atmosphere. The moon has some of the oldest rocks in the solar system. The moon's rotation is the same as its revolution. The moon has the same temperature all around.

Compared with the other moons of Jupiter, the four Galilean moons areGroup of answer choicesLargerYoungerFarther from JupiterLighter