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Which one of the following is the dominant element of the Earth's crust?
- a)Aluminium
- b)Iron
- c)Oxygen
- d)None of the above
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following is the dominant element of the Earths crust...
The correct answer is Oxygen.
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Which one of the following is the dominant element of the Earths crust...
Dominant Element of the Earth's Crust
The Earth's crust is the outermost layer of our planet, composed of various elements and minerals. Among these, oxygen is the most abundant element.
Composition of the Earth's Crust
- The Earth's crust is primarily made up of silicate minerals, which are compounds that include silicon and oxygen.
- Oxygen constitutes about 46.6% of the Earth's crust by weight, making it the dominant element.
Significance of Oxygen
- Oxygen's high abundance is due to its ability to bond with many other elements, forming a variety of minerals.
- Common minerals in the crust, such as feldspar, quartz, and mica, are silicates, which inherently include oxygen in their molecular structure.
Comparison with Other Elements
- Aluminium, although the third most abundant element in the crust, only accounts for about 8.1% by weight.
- Iron is also present but makes up roughly 5% of the Earth's crust, ranking it lower than both oxygen and aluminium.
Conclusion
- Oxygen's dominance in the Earth's crust is fundamental to the composition of rocks and minerals that form the landscape we see today.
- Understanding the elemental composition helps geologists and scientists in various fields, including geology, mineralogy, and environmental science.
In summary, oxygen is the predominant element in the Earth's crust, significantly influencing its geological features and the formation of minerals.
The Earth's crust is the outermost layer of our planet, composed of various elements and minerals. Among these, oxygen is the most abundant element.
Composition of the Earth's Crust
- The Earth's crust is primarily made up of silicate minerals, which are compounds that include silicon and oxygen.
- Oxygen constitutes about 46.6% of the Earth's crust by weight, making it the dominant element.
Significance of Oxygen
- Oxygen's high abundance is due to its ability to bond with many other elements, forming a variety of minerals.
- Common minerals in the crust, such as feldspar, quartz, and mica, are silicates, which inherently include oxygen in their molecular structure.
Comparison with Other Elements
- Aluminium, although the third most abundant element in the crust, only accounts for about 8.1% by weight.
- Iron is also present but makes up roughly 5% of the Earth's crust, ranking it lower than both oxygen and aluminium.
Conclusion
- Oxygen's dominance in the Earth's crust is fundamental to the composition of rocks and minerals that form the landscape we see today.
- Understanding the elemental composition helps geologists and scientists in various fields, including geology, mineralogy, and environmental science.
In summary, oxygen is the predominant element in the Earth's crust, significantly influencing its geological features and the formation of minerals.
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Which one of the following is the dominant element of the Earths crust?a)Aluminiumb)Ironc)Oxygend)None of the aboveCorrect answer is option 'C'. Can you explain this answer?
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