Which ion can cause more water absorption?

A. H⁺

B. Na⁺

C. Ca⁺⁺

D. All of the above

Answer: Option B

Solution(By Examveda Team)

The sodium ion is the ion that can cause more water absorption in soils.
Sodium ions have a strong ability to absorb water from their surroundings. Sodium ions are involved in the electrical neutralization of inorganic and organic anions and macromolecules, pH homeostasis, control of membrane electrical potential and the regulation of cell osmotic pressure.