Which section of ocean floor is near the coastlines of all continents?

neritic zone
open ocean
shallow ocean
intertidal zone

The correct answer is intertidal zone.

The littoral zone or the intertidal zone, also known as the foreshore or the seashore, refers to the area, which is above the water at low tide and below the water at high tide. This zone incorporates different types of habitats, with animals like starfish sea urchin, and various species of coral. This zone is situated close to the coastlines of all the continents.

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.