Question

Why do the roots of the mangrove trees grow above the soil?

• A. The roots grow above the soil to breathe air.
• B. The roots do not have enough soil to grow below.
• C. The roots are uplifted due to the constant movement of tides.
• D. All of the above

Answer 1

The correct option is A The roots grow above the soil to breathe air.

The saline marshy soil lacks oxygen. Normally, soil on land has gaps through which the roots take in oxygen, but in marshy soil, these gaps are filled with water. Therefore, to breathe, the roots grow above ground level.