Constitution of the Earth's Interior — Important Questions
Gujarat Board · Class 11 · Geography
41 important questions from Constitution of the Earth's Interior for Gujarat Board Class 11 Geography, with answers.
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Important Questions from Constitution of the Earth's Interior
Which of the following are direct sources of information about the Earth's interior?
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Deep mines and oil wells, Volcanic eruptions
Direct sources provide actual material from the Earth's interior. Deep mines and oil wells allow us to reach into the Earth, while volcanic eruptions bring material from the interior to the surface. The other options are indirect sources.
What is the main composition of the Sima layer?
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Silicon and Magnesium
Sima is composed of silicon and magnesium. The name 'Sima' comes from the first two letters of Silicon (Si) and Magnesium (Ma).
Which of the following are characteristics of the Earth's core?
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Rich in nickel and iron, Also known as Nife, Divided into inner and outer core
The Earth's core is rich in nickel and iron (hence called Nife), and is divided into inner and outer core. It has the highest density, not the lowest, and is not composed of granite.
What is the thickness of the lithosphere on average?
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33 km
The thickness of the Earth's crust (lithosphere) is 33 km on average. It varies from about 5 km below oceans to 30 km below continents.
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