Physical, or mechanical, weathering happens when rock is broken through the force of another substance on the rock such as ice, running water, wind, rapid heating/cooling, or plant growth. Chemical weathering occurs when reactions between rock and another substance dissolve the rock, causing parts of it to fall away.
The Roman government had a republic and some of there principles like electing a leader its still used in the American government today.
Answer:
true .... have nice day....
Mostly ash, Igneous rocks, molten rock, etc.