Which of the following functions do forests perform that aids in reducing greenhouse gases? a.)they maintain biodiversity. b.)they store carbon that is produced. c.)they provide sources of fresh water. d.)they provide protective cover on soil.

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing