Rocks
weathering and plant growth growing through and eventually causing a crack in the rock
heat and extreme pressure. also water freezing and melting.
Their evidence comes from rocks at earths surface.
Thermal expansion causes repeated expansion and contraction within the rock. This repeated stress breaks bonds and eventually causes the rock to crack. Thermal expansion is classified as a type of physical or mechanical weathering.
Rocks
Pressure
beacause it is moving
sounds like, if the rocks are plates, an earthquake... assuming this "crack" is a fault?? does this help?
rocks and hot moving plates
weathering and plant growth growing through and eventually causing a crack in the rock
An earth quake occures when the underground plates that are near the center of the earth come together, like 2 over-lap, the friction will cause heat, and also when the 2 over-lap, they can crack, which then causes the earth quake. The size of the earth quake all depends on the size of the crack.
heat and extreme pressure. also water freezing and melting.
rocks
Their evidence comes from rocks at earths surface.
Thermal expansion causes repeated expansion and contraction within the rock. This repeated stress breaks bonds and eventually causes the rock to crack. Thermal expansion is classified as a type of physical or mechanical weathering.
Plants are the organisms which have roots and can crack rocks