Answer:
district of Columbia.....
Ectoderm, mesoderm and endoderm.
Platinum is found in its pure native form, or in platiniridium, a natural alloy of platinum and iridium. Platinum is present in thin sulfide layers in certain maficigneous bodies and is mined in Canada, Russia, South Africa, the USA, Zimbabwe and Australia. Some platinum is obtained as a by-product of copper and nickel processing.
Answer:
-100
Explanation:
try looking at the numbers like their at a number line, so the farthest right number or the number closest to 0 will have the highest elevation/be bigger.
if they were asking for the hill with the lowest elevation, you would have to go with the lowest number, aka -300
