12) What are three ways to "log better"

Explanation:

Three ways to "log better" include reducing clear cutting and stopping clear cutting on steep slopes where erosion effects are much greater, using selective cutting and strip cutting, and stopping logging old-growth forests. i don't know if u mean on cutting actual log lol

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.