Sea level rises when it rains or when snow is melting. Sometimes more water forms in new areas and makes it into an add on to the ocean which Changes the shape.
False a watershed is an area of land that contains a common set of streams and rivers that all drain into a single larger body of water
Between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.
The first things that should be done would be to ensure that you yourself are aware of the hazardous materials that are present, protect yourself, and call for personnel. Hope this helps!