A mature corn plant absorbs almost …...of…... water in ...

Options

A. 5 litres ,in a day
B. 1 litres ,one hour
C. 5 litres in a half day
D. 3 litres , a day

Answer

### Step-by-Step Solution:

1. **Understanding Plant Water Absorption**:
- Plants absorb water primarily through their root systems. This water is essential for various physiological processes, including photosynthesis and transpiration.

2. **Role of Water in Photosynthesis**:
- While water is crucial for photosynthesis, it is important to note that only a small fraction (about 1%) of the water absorbed is actually used for this process. The majority is used for transpiration.

3. **Transpiration Process**:
- Transpiration is the process through which water vapor is released from the plant's leaves into the atmosphere. This process creates a negative pressure that helps pull more water up from the roots through the xylem.

4. **Water Absorption in Corn Plants**:
- Specifically for corn plants, it is noted that a mature corn plant can absorb approximately 3 liters of water per day.

5. **Conclusion**:
- Therefore, the answer to the question is that a mature corn plant absorbs almost **3 liters of water in a day**.