Multiple choice

Which of the following options is present in the largest amount in the earth's crust?

  1. Calcium

  2. Carbon

  3. Oxygen

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oxygen is the most abundant element in Earth's crust, comprising approximately 46-47% by weight. It exists primarily in silicate minerals. Calcium and carbon are present in much smaller quantities (about 4% and 0.1% respectively).

Keep practicing — related questions