Answer:
D. All of these
Hope this helps! Please mark as brainliest.
B because i am pretty sure that is the correct answer
Mafic materials are usually dark in color and have relatively high specific gravities grater than 3.0 Felsic materials are usual at lighter in color and have specific gravities less than 3.0
Well lack of competition LEDS TO> lots of variation which LEDS TOO> speciation
I hope that helps