Question

Why is water essential for plants?

• A. It helps in seed germination.
• B. It helps in nutrient absorption.
• C. It protects plants from frost and hot air currents.
• D. It helps in soil erosion.

Answer 1

Answer: (A), (B), (C)

• Water is essential for plants as it helps in seed germination, absorption of nutrients in dissolved form and also protects the plants against frost and hot air currents.
• Whereas soil erosion is the removal of top fertile layer of soil which generally occurs when there is lack of vegetation cover.
• Importance of water for plants:

1. Plants need water to prepare their food, for germination and growth to produce fruits, flowers etc.
2. For conduction of food prepared by plants to other parts of plant i.e., for translocation.
3. Large number of plants live in water. Water provides nutrients and oxygen for their survival. Crops need water for their growth.
4. Water in the form of rain, washes the dust and smoke deposited on leaves by vehicles and helps the stomata in exchanging gases.