PLEEASEE HELP ITS PAST DUE AND IM GIVING BRAINLIEST Which process is an example of a physical change?

a. wood burning in a camp fire
b. iron rusting on a bicycle chain
c. ice melting after a snow storm
d. milk souring because it is old

What layer of the atmosphere is directly above the troposphere?

Adilute aqueous potassium nitrate solution is

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering