Question

Where do plant roots take up oxygen from ?

• A. Atmospheric air
• B. Air spaces between soil particles
• C. Water in soil particles
• D. None of the above

Answer 1

The correct option is B Air spaces between soil particles

Plant's roots are embedded into the soil. The soil has air spaces which allow the tip of the roots to take up oxygen and then this is used by the cells of the root for respiration.

So the correct answer is 'Air spaces between the soil'.