Question

Plants die from prolonged water-logging because
(a) soil nutrients become very dilute
(b) root respiration stops
(c) cell sap in the plants becomes too dilute
(d) nutrients leach down due to excess water

Answer 1

Answer:

Option (b) is correct.

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Explanation:

Answer 2

Answer is option "b"

Explanation:

• Prolonged water-logging will result in the death of the plants. It is because the roots when introduced in excess water condition, cannot absorb required oxygen. It will also cause the death and decay of the plant due to the excess inflow of water into the cells. At the same time, there are some plants, which favor waterlogged conditions, like rice.
• Since soil gets completely soaked with water which prompts lacking oxygen supply to the roots and prevents carbon dioxide to diffuse away. Oxygen insufficiency in roots makes a change from vigorous anaerobic breath.
• Hence, the right answer is option b "root respiration stops".