Which one is the most abundant of all the elements on Earth?
Silicon
Aluminium
Carbon
Oxygen
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2023
The elemental composition of the Earth’s crust differs from that of the entire Earth. For the Earth’s crust, the most abundant elements by weight are: Oxygen (O) > Silicon (Si) > Aluminium (Al) > Iron (Fe) > Calcium (Ca) > Sodium (Na) > Potassium (K) > Magnesium (Mg). If considering the entire Earth, Iron is the most abundant element, followed by Oxygen, Silicon, and Magnesium, as the core is primarily composed of iron and nickel.