Which piece of evidence did Alfred Wegener's original theory of continental drift have access to? a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains

reversing paleomagnetism in rocks on the ocean floor

mountains in North America appearing to match up with mountains in Northern Europe

seafloor spreading at mid-ocean ridges

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.

1. they vary with a higher number because boiling is way hotter than melting