Question : The upper portion of the mantle is called ____.
Option 1: lithosphere
Option 2: stratosphere
Option 3: mesosphere
Option 4: asthenosphere
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Correct Answer: asthenosphere
Solution : The correct option is asthenosphere.
The upper portion of the mantle is called the "asthenosphere." The asthenosphere is a semi-fluid layer located beneath the rigid lithosphere. It consists of partially molten rock that allows for the movement of tectonic plates.
The earth's crust is the outermost layer of the earth, consisting of solid rock. It includes both the continental crust, which forms the continents, and the oceanic crust beneath the oceans. The crust is relatively thin compared to the other layers of the earth.
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Question : A level of the atmosphere which is composed partly of electrons and positive ions is called
Option 1: Troposphere
Option 2: Ionosphere
Option 3: Stratosphere
Option 4: Mesosphere
Question : Which is the warmest layer of the atmosphere?
Option 1: Thermosphere
Option 2: Troposphere
Question : Which layer of the atmosphere helps in radio transmission?
Option 1: Exosphere
Option 2: Thermosphere
Option 3: Mesosphere
Option 4: Stratosphere
Question : The layer of Earth that separates the crust from the core is:
Option 1: stratosphere
Option 2: mantle
Option 3: magma layer
Option 4: country
Question : The core of the earth is also known as
Option 1:
Option 2:
Option 3:
Option 4:
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