Pls answer it fast.

What was the particular challenge of crossing the Indian ocean in order to reach Asia?

Atopography map is used to study changes in vegetation associated with different elevations. which individual most likely used them for this purpose?

Idont know the answers i would mean so much if you i will you a lot

When a rock is mechanically weathered, the surface area of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is increased, which hinders chemical weathering. the volume of the rock is decreased, which hinders chemical weathering. the volume of the rock is increased, which allows a greater amount of chemical weathering to occur. the surface area of the rock is decreased, which allows a greater amount of chemical weathering to occur