Q.1.
An earthquake can be measured on what scale?
Q.2.
Large rocks thrown from a volcano have what name?
Q.3.
Earthquakes are most likely to happen where?
Q.4.
Heated underground water rising to the surface under huge pressure is a...?
Q.5.
How can you tell that South America and Africa were once joined?
Q.6.
Which layer is immediately below the earth's crust?
Q.7.
A volcano not expected to erupt again is called what?
Q.8.
Mauna Loa is a volcano in which American state?
Q.9.
Which ocean has a ring of earthquakes and volcanoes around its edge?
Q.10.
What form does the mantle take?