■ MOST ABUNDANT ELEMENTS OF THE EARTH'S CRUST

#Interiorofearth

ELEMENT - APPROXIMATE % BY WEIGHT

◇ Oxygen - 46.6%

◇ Silicon (Si) - 27.7%

◇ Aluminium (Al) - 8.1%

◇ Iron - 5.0%

◇ Calcium (Ca) - 3.6%

◇ Sodium (Na) - 2.8%

◇ Potassium (K) - 2.6%

◇ Magnesium (Mg) - 1.5%

▪︎ @upsc_geography_notes

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■ ELEMENTS OF EARTH

#Interiorofearth

1. Iron – 34.6%
2. Oxygen – 29.5 %
3. Silicon – 15.2 %
4. Magnesium – 12.7%
5. Nickel – 2.4 %
6. Sulphur – 1.9%
7. Titanium – 0.05%

▪︎@upsc_geography_notes

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