Can we tell whether the daylight and darkness line at the right is the sunset line or the sunrise line

Yes we can scientist that are observing the solar system and the planets take measurements and they, would tell the public when needed

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answerhighlands and forests;