SCIENCE
EARTH SCIENCE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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igneous rock
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metamorphic rock
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sedimentary rock
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rock cycle
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Detailed explanation-1: -Limestone. Limestone is a sedimentary rock. It is formed by layers of small pieces of rock and stones pressed hard together.
Detailed explanation-2: -Sedimentary Rock. An example of a sedimentary rock, which is, by definition, composed of many, smaller rocks. Sedimentary rocks are formed on or near the Earth’s surface, in contrast to metamorphic and igneous rocks, which are formed deep within the Earth.
Detailed explanation-3: -Compaction helps form clastic sedimentary rocks. Where sediments are deposited, layer upon layer builds up. Pressure from the upper layers pushes down on the lower layers. If the sediments are small, they can stick together and form solid rock. This process is called compaction.
Detailed explanation-4: -Sediments are loose particles of former rocks. They can either be bits of rock (ranging from mineral grains all the way to boulders) or material which was dissolved and then later precipitated from water to form solid crystals.
Detailed explanation-5: -Sedimentary rocks are formed from deposits of pre-existing rocks or pieces of once-living organism that accumulate on the Earth’s surface. If sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.