How is physical weathering different from chemical weathering

Physical weathering is when weather or other natural things break something down.  ( Wind and rain wearing down a rock into a different shape)  Chemical weathering is when something is changed or worn down by unnatural resources. (Oil stains on a tree due to a spill )

It is written in the constitution saying all beliefs are allowed in the u.s. justice will be surved to everyone no matter what the color of that person is. and that all people are equal not matter there color is the u.s. that was a lie though because black people were still treated poorly, and there were places that was white people only such as hospitals, schools, bathroom, and more.