Multiple choice general knowledge science & technology

The major composition of sea water is.?

  1. Na

  2. Fe

  3. H2SO4

  4. NaCl
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Seawater contains dissolved salts, predominantly sodium chloride (NaCl), which accounts for about 2.5-3.5% of seawater by weight. Other elements like Na (sodium) and Fe (iron) are present in much smaller quantities, and sulfuric acid (H2SO4) is not a major component.

Keep practicing — related questions