Which of the following illustrates mechanical weathering?

A. Carbonic acid weathers marble limestone
B.As plants grow, they produce weak acids that slowly dissolve rock
C.Oxidation causes weathering in rock<---
D.Repeated freezing and thawing in rocks causes weathering

If your going to be mean and nasty to ms.sue then just dont bother asking any questions. PEople are here to get answers checked and get more explained if need be. So just stop the crap.

Three of your choices involve chemical processes.

B C and D

Is it A @Ms. Sue

no one- i don't get it

The answer is D I just took the test

it's D

Which three mention chemical reactions?

http://www.kidsgeo.com/geology-for-kids/0067-chemical-weathering.php

Two of those are right. What about carbonic acid?

http://www.kidsgeo.com/geology-for-kids/0066-mechanical-weathering.php

you are all stupid and gross