Answer:
they occur at convergent plate boundaries
This photo has facts about that info on it
Ferromagnesian vs. non-ferromagnesian
------------------------------- ----------------------------
1-Contains Magnesium and Iron 1- Contains little or no Magnesium &
as major components Iron
2- Color: very dark 2- Color: Generally lighter
3- Density relatively high 3- Density relatively low
16m -12 - m + 5 = - 52
16m - m = - 52 - 5 + 12
15m = - 45
m = -45 / 15
m = -3
Hey there! This is the correct choice
1st: North and South America 2nd: Europe 3rd: Africa 4th: Asia
Hope this helped!
