5. Match the sentences with the pictures. Sentences: They look like mountains. They start under the sea. They are under the earth. When they erupt, they can make islands. They are the most dangerous volcanoes. They are the most common volcanoes. Pictures: a, b, c.

a — They look like mountains; They are the most common volcanoes.

b — They start under the sea; When they erupt, they can make islands.

c — They are under the earth; They are the most dangerous volcanoes.