Author Question: Which of these moons has the densest atmosphere? A) Europa B) Io C) Triton D) Titan E) ... (Read 70 times)

formula1 · **on:** Jul 27, 2018

Which of these moons has the densest atmosphere?

A) Europa B) Io C) Triton D) Titan E) Callisto

Question 2

Why is Earth's continental crust lower in density than seafloor crust?

A) Continental crust comes from volcanoes while seafloor crust comes from geysers.
B) Continental crust is made from a low-density volcanic rock called basalt.
C) Continental crust is made as the lowest-density seafloor crust melts and erupts to the surface near subduction zones.
D) Continental crust comes from Earth's inner core while seafloor crust comes from the outer core.