Volcanoes (Grade 10 NSC Matric Geography): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What happens during extrusive volcanic activity?
What happens during extrusive volcanic activity?
Magma erupts above Earth's surface
Where does intrusive volcanic activity occur?
Where does intrusive volcanic activity occur?
Below Earth's surface as magma cools
How often does an active volcano typically erupt?
How often does an active volcano typically erupt?
Once every 20 years or so
How long has a dormant volcano typically not erupted for?
How long has a dormant volcano typically not erupted for?
Several hundred years
What indicates a volcano is extinct?
What indicates a volcano is extinct?
No eruption for hundreds/thousands of yrs
What shape does a cinder cone volcano form?
What shape does a cinder cone volcano form?
Steep cone with bowl-shaped crater
What is the largest type of volcano?
What is the largest type of volcano?
Shield volcano
What type of lava typically forms shield volcanoes?
What type of lava typically forms shield volcanoes?
Basalt with low gas content
What structure do composite volcanoes have?
What structure do composite volcanoes have?
Alternating layers of ash and lava
What is another name for composite volcanoes?
What is another name for composite volcanoes?
Stratovolcanoes