Question

The following list best summarizes conditions that are unique to Earth because they are "just right" to support life:



temperature or amount of radiation from the Sun, gravity, atmosphere, and water


water, a moon, and a lithosphere


atmosphere, gravity, water, and a cryosphere


differentiated composition, water, atmosphere, and a lithosphere

Answer 1

The main thing is earths distance to the sun. This made liquid water possible. As water condensed it dissolved almost all the CO2 and turned it into carbonate rock. Venus had all the same things but being too close to the sun water never condensed. And so the CO2 remains in gaseous form making the atmosphere 90 times as dense as earths. Earths atmosphere was just as dense in the beginning.
Earths mass is also just right. It enables the atmosphere to remain. Mars also had a much denser atmosphere and liquid water but being too light the atmosphere escaped. Earths more massive core also generates heat that causes the interior of earth to be molten. That, along with earths rotation, generates the magnetosphere that also protects earths atmosphere. Mars has the rotation but not enough heat to keep the core liquid. And so hardly any magnetosphere. Venus is massive enough to have molten interiors but doesn´t have the rotation. So hardly any magnetosphere there either. And so most of the water that once existed is now lost.

Answer 2

does that help i am sorry if that's no long to read