Question

Why humans occupy only earth and not moon or mars?​

Answer 1

Answer:

Justifications for choosing Mars over other potential terraforming targets include the presence of water and a geological history that suggests it once harbored a dense atmosphere similar to Earth's. Hazards and difficulties include low gravity, low light levels relative to Earth's, and the lack of a magnetic field.

Answer 2

Explanation:

Why humans occupy only earth and not moon or mars?

because in moon or mars there is no favourable condition for human survival. no atmosphere, no water how can u survive there.

Mars has a much thinner atmosphere than Earth and doesn't have a global magnetic shield, so humans on the planet's surface would be at risk of exposure to solar and cosmic radiation.