2. Herman's company has adopted a paperless policy. Employees no longer print letters or documents and instead do everything on the computer. Office
paper use has dropped by 40% in the last six months. If everyone adopted
the same policies, what impact would that have on the environment?
A. There would be an increase in urbanization, because humans would
move closer together.
B. There would be a decrease in water quality, because less water would
enter the water cycle through transpiration.
C. There would be an increase in erosion, because there would be less
recycled paper to break down into soil.
D. There would be a decrease in deforestation, because fewer trees would be
cut down for paper.

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.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.