Pangaea
If by land mass you mean the surface, then 99% is habitable.
The Mantle
Continental drift
Different to what the world looks like now. Probably becoming one big land mass because of the way the techtonic plates are moving. The land mass may have some seas unlike pangia.
Asia
The north and eastern hemispheres
north
north
The tropical forest covers most of the land.
Pangaea
If by land mass you mean the surface, then 99% is habitable.
north
No. The crust contains a small fraction of earth's mass. Most of the mass is contained in the mantle.
east
The Mantle
Venus is closest to the Earths size and mass - often referred to as Earths sister or twin planet. Venus' Mass is around 82% of Earths, while its diameter is a little smaller than Earths at around 95% of Earths.