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By which name do we call the molten rock found inside the Earth?
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Magma
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Lava
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Salsa
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Hot Rocks
Explanation
The molten rocks found inside the Earth are known as magma. It is in liquid form rich in silica that solidifies as it reaches near the crust of the Earth.
The layer of water that covers the Earth's surface is known as?
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Hydrosphere
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Lithosphere
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Atmosphere
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Biosphere
Explanation
The water present on the Earth collectively comes under the term hydrosphere. More than 97% of this water is saltwater.
How many types of rocks are there?
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3
0%
2
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4
0%
5
Explanation
Grains of minerals bond together to form rocks. Rocks are classified into three types: igneous, metamorphic, and sedimentary.
Basalt is a type of which rock?
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Igneous Rocks
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Sedimentary Rocks
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Molten Rocks
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Metamorphic Rocks
Explanation
Basalt is a type of igneous rock. It is used to make roads surfaces as it is resistant to weathering due to extreme temperatures and has high elastic strength.
Fossils are found in which special type of rock?
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Sedimentary
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Metamorphic
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Igneous
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Volcanic
Explanation
It is in the sedimentary rocks that fossils are found. The deposition of minerals on the surface of the Earth over a period leads to the formation of sedimentary rocks.
What type of rocks are formed due to volcanic activity?
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Igneous Rocks
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Sedimentary Rocks
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Limestone
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Metamorphic Rocks
Explanation
Volcanic activity leads to the formation of igneous rocks. Since they are formed by the solidification of magma, they are also known as magma rocks.
Name the hardest element found on Earth?
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Diamond
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Iron
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Copper
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Potassium
Explanation
The hardest element found on Earth is diamond which is a form of pure carbon in sold form. They also have the highest thermal conductivity among natural metals.
Who is the father of geology?
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James Hutton
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William Smith
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Charles Lyell
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Charles Darwin
Explanation
James Hutton, who was a Scottish naturalist and a farmer, is regarded as the father of geology. He is credited with producing many theories on rock formations.
Which is the most rigid part of the Earth?
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Lithosphere
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Atmosphere
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Biosphere
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Hydrosphere
Explanation
The hardest or the most rigid part of the earth is the Lithosphere. It is further divided into the oceanic and continental lithosphere.
The least dense layer of the Earth is known as?
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Crust
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Mantle
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Inner Core
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Outer Core
Explanation
The crust is the least dense layer of the Earth. The crust, along with the upper part of the mantle, together makes the lithosphere.
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