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The surface of Mercury looks very similar to 

The spring tide can occur at either ___________  or ____________ phases of the Moon.

Venus and Mercury both have magnetic fields similar to Earth’s.

The craters in the lunar mare are younger than the lunar mare themselves.

Which statement about seismic waves is true?

The Earth’s hotter, inner core is liquid and its cooler, outer core is solid.

The largest difference between Mars’ northern and southern hemispheres is that:

Venus can appear as a crescent through the telescope.

The Earth and Moon always keep the same side towards each other.

The earth’s inner core is about the same temperature as the surface of the Sun.