A, lava is magma that is outside of the volcano. I hope this helps.
The answer is B. 6.
Explanation: Mass number = protons + neutrons
11=5+n
6=n
Answer:
By giving detailed images
Explanation:
Satellites would be useful in mapping moutainous areas because it could give an ariel view of the area and give a more detailed view of the area through geothermal imaging
They worked out a deal in Potsdam