FuzzyBacca3
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Which of the following is found in large quantities in the Earth’s crust?

A: Silicon
B: Magnesium
C: Nickel
D: Iron

Sagot :

W0lf93
Answer – A (Silicon)

Option A (Silicon) makes up 27.7% of the elements in the earth’s crust
Option B (Magnesium) makes up 2.1% of the elements in the earth’s crust
Option C (Nickel) is not found in earth’s crust.
Option D (Iron) makes up 5.0% of the elements in the earth’s crust

The earth’s crust basically contains eight (8) elements namely: Oxygen, Silicon, Aluminum, Iron, Calcium, Sodium, Potassium and Magnesium (Listed in order of abundance). The only element that is more abundant that Silicon in the earth’s crust is Oxygen, which accounts for 46.6%.
eric1400800

Answer:

A: Silicon

Explanation:

More than 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the Earth's crust (about 28% by mass) after oxygen. Ur Welcome.

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