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11 grade chemistry others

What is the most abundant element on earth?

  • A. Hydrogen
  • B. Nitrogen
  • C. Oxygen
  • D. Silicon

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11 Months agoGrade
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ApprovedApproved Tutor Answer11 Months ago

The most abundant element on Earth is Oxygen. It makes up about 46% of the Earth's crust by weight and is essential for life as it is a key component of water and many minerals.

Element Breakdown

  • Hydrogen: The lightest element, but not the most abundant in the Earth's crust.
  • Nitrogen: Predominantly found in the atmosphere, making up about 78% of it.
  • Silicon: The second most abundant element in the Earth's crust, but still less than oxygen.

Importance of Oxygen

Oxygen is crucial for respiration in animals and plants, and it plays a vital role in various chemical processes, including combustion and oxidation.