Volcanoes are classified into:

Volcanoes that are expected to erupt any time are called:

The location under the earth where an earth quakes starts is  the: 

Which is the largest volcano in the solar system?

The Richter Scale has magnitude levels from:

Volcanoes which may almost have no chance of erupting are called:

Natural resources are classified into:

Which is the largest volcano on earth?

Earth quakes are recorded by a:

When the magnitude of an earthquake is between 6 to 6.9, it is called: