Question : The upper portion of the mantle is called ____.
Option 1: asthenosphere
Option 2: barysphere
Option 3: mesosphere
Option 4: lithosphere
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Correct Answer: asthenosphere
Solution : The correct answer is asthenosphere.
The upper portion of the mantle is known as the asthenosphere. There are three layers of the earth, namely, the crust, mantle, and core. The asthenosphere is a weak portion below the lithosphere. It is generally hotter and more viscous than the lithosphere. The asthenosphere is composed mainly of magnesium and iron.
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Question : The atmospheric layer reflecting radio waves is called
Option 1: ozonosphere
Option 2: ionosphere
Option 3: stratosphere
Option 4: mesosphere
Question : The ozone layer is found in which of the following layers of the atmosphere?
Option 1: Stratosphere
Option 2: Troposphere
Option 3: Mesosphere
Option 4: Exosphere
Question : Which of the following layers is not one of the atmospheric layers of the Earth?
Option 2: Thermosphere
Option 4: Endosphere
Question : Select the INCORRECTLY spelt word.
Option 1: Crater
Option 2: Mantle
Option 3: Volkano
Option 4: Earthquake
Question : The satellites orbit the Earth in which of the following layers of the atmosphere?
Option 2: Exosphere
Option 3: Troposphere
Option 4: Mesosphere
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