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

Volcanoes which have not erupted for a long time are called:

A long period of dryness with little or no rain is known as:

The magnitude of an earthquake is measured by the:

When magma comes out of the earth, it is called:

Earth quakes are recorded by a:

The opening of a volcano at the summit is known as:

The molten rock deep inside the earth is called:

The Richter Scale has magnitude levels from:

Volcanoes are classified into: