When alkaline earth metals are mixed with water, why does a bluish or gray-blue haze form in the water? also, can this person provide a website link or somewhere where i can find this information?

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

it has both hydrogen and oxygen