Question

3. Where are the longest continuous mountain ranges on Earth located?

Answer 1

Assuming you need these questions answered, due to the incorrect marks at the bottom of each one..? 
 
Let's dig in! 

3. The longest range of mountains stretches ALL around the Earth, and its located along the ocean floors! 

4. Seismometers measure motion within the ground, also known as seismic waves! They can show earthquakes, volcanic eruptions, and even show where explosives are going off, or have gone off. 

6. It is the least explosive! 

8.  Convergent and divergent boundaries.

9. The answer is D, two oceanic plates converge. This is where chain volcanoes lie. 

17. Oceanic-continental

20.  C! Paleomagnetism, its the science of studying the magnetic properties of different rocks, soils, sediments, and such!