Answer:
890 has 2 significant figures
It is d. compounds because they have more than one element.
The answer to the given question above is GUIANA SHIELD. This is the physical feature that industrial diamonds are mined. Guiana shield is actually located in northeast South America. This is considered to be one of the <span>cratons of the South American Plate. This location is said to have an abundant deposits of diamonds and other minerals.</span>
The first reaction is a synthesis reaction (A+B -> AB)
