Answer:
I might be wrong, but I think the 4 main ethnic groups are Caucasian, Hispanic, African-American, and Asian.
Answer:
Is this a multiple choice question? If so, where are the choices???
Idk what kind of question this is, so I'll just put some useful info on here...
Most earthquakes directly beneath a volcano are caused by the movement of magma. The magma exerts pressure on the rocks until it cracks the rock. ... Every time the rock cracks it makes a small earthquake.
Hope this helps you!! :)
Answer:
The value of ∠QPR is 40°.
-70+40 is like subtracting 70 and 40, but adding a negative sign in front. The answer is -30