Why might sand on beaches in Hawaii be different colors even though the sand all formed from igneous rock?

n Hawaii you can find black sand beaches, because the sand comes from eroded basalt - lava from the volcanoes. ... That sand is made of olivine, an igneous rock that is rare on the surface of the earth because it breaks down up here, and is stable inside the earth (where the pressure is higher and the temperature hotter.)

Explanation:

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?