The Structure of Earth (Grade 10 NSC Matric Geography): Quizzes
📚Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is geomorphology?
What is geomorphology?
Study of Earth's physical features
How many main layers does Earth have?
How many main layers does Earth have?
Four
In the hard-boiled egg analogy, which part represents the mantle?
In the hard-boiled egg analogy, which part represents the mantle?
Egg white
How thick is oceanic crust compared to continental crust?
How thick is oceanic crust compared to continental crust?
5-10 km (thinner than continental)
What percentage of Earth's total volume does the mantle make up?
What percentage of Earth's total volume does the mantle make up?
Approximately 80%
What is the state of the outer core?
What is the state of the outer core?
Molten (liquid) metal
Why does the inner core remain solid despite extreme heat?
Why does the inner core remain solid despite extreme heat?
Extreme pressure from layers above
At what depth below Earth's surface does the mantle end?
At what depth below Earth's surface does the mantle end?
Approximately 2,900 km
What is the average temperature at Earth's inner core?
What is the average temperature at Earth's inner core?
5,000°C
What creates Earth's magnetic field?
What creates Earth's magnetic field?
Liquid metal moving in the outer core