EARTH SCIENCE
VOLCANOES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen and silica
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Oxygen and silicon
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Oxygen and sillia
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Oxygen and silion
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Detailed explanation-1: -silica, also called silicon dioxide, compound of the two most abundant elements in Earth’s crust, silicon and oxygen, SiO2. The mass of Earth’s crust is 59 percent silica, the main constituent of more than 95 percent of the known rocks.
Detailed explanation-2: -Silica is another name for the chemical compound composed of silicon and oxygen with the chemical formula SiO2, or silicon dioxide. There are many forms of silica. All silica forms are identical in chemical composition, but have different atom arrangements.
Detailed explanation-3: -Silicon dioxide, made of elements silicon and oxygen contains 46.7% by mass of silicon.
Detailed explanation-4: -Silica is the common name for the chemical compound silicon dioxide. This compound is made up of one silicon atom bonded to two oxygen atoms and represented by the chemical formula SiO2 S i O 2 . Silicon and oxygen in the form of silica are extremely abundant within Earth’s crust and interior.
Detailed explanation-5: -The ingredient silicon comes from silica which is derived from sand. The process to make silicon is complex and involves many stages. This arduous process contributes to silicone rubber’s premium price compared to natural rubber.