Constructive Force
rock
preporation is a water snow hard rain or hail snow sleet from earths surface
u dig a hole and mine NOT HARD
This is a chemical process: a hydration reaction occur.
Chalk can be used to write on any hard dark surface that is slightly abrasive (not polished smooth).
rock
Diamond is the earths hardest material.
Tracks form circles on the surface of a hard disk
rock
Constructive Force
volcanoes change the earths surface due to the lava set hard and drys which can make the surface bobbly and ruff also it makes the land more fertilekill people
Cell Membrane
because its hard to breathe thin air above earths surface, the higher you go its hard to breathe oxygen.
preporation is a water snow hard rain or hail snow sleet from earths surface
volcanoes change the earths surface due to the lava set hard and drys which can make the surface bobbly and ruff also it makes the land more fertilekill people
track
the hard fibrous material that forms the main substance of the trunk or branches of a tree or shrub