What is the percentage of water loss in mango and sunflower leaves, and how is it calculated?

The tables provided for "a. Mango leaves" and "b. Sunflower leaves" are empty, and therefore, there is no data available for the weights of the leaves at 0 minutes and 60 minutes.

To calculate the overall percentage of water loss, I need the following data for both types of leaves:

• Initial weight of leaves at 0 minutes.
• Final weight of leaves at 60 minutes.

Since this data is missing, I cannot perform the calculation.

However, I can show you the formula and how the calculation would be done if the data were available:

Formula for Percentage Water Loss:

$$\text{Percentage Water Loss} = \frac{\text{Initial Weight} - \text{Final Weight}}{\text{Initial Weight}} \times 100\%$$

Steps (if data were available):

For Mango Leaves:

1. Find the initial weight of mango leaves at 0 minutes (let's call it $W_{M,0}$).
2. Find the final weight of mango leaves at 60 minutes (let's call it $W_{M,60}$).
3. Calculate the water loss for mango leaves: $\text{Water Loss}_M = W_{M,0} - W_{M,60}$.
4. Calculate the percentage water loss for mango leaves: $$\text{Percentage Water Loss}_M = \frac{W_{M,0} - W_{M,60}}{W_{M,0}} \times 100\%$$

For Sunflower Leaves: 11. Find the initial weight of sunflower leaves at 0 minutes (let's call it $W_{S,0}$). 12. Find the final weight of sunflower leaves at 60 minutes (let's call it $W_{S,60}$). 13. Calculate the water loss for sunflower leaves: $\text{Water Loss}_S = W_{S,0} - W_{S,60}$. 14. Calculate the percentage water loss for sunflower leaves: $\text{Percentage Water Loss}_S = \frac{W_{S,0} - W_{S,60}}{W_{S,0}} \times 100\%$

Overall Percentage Water Loss (if requested as a combined value):
If "overall percentage water loss" refers to the total water loss from both types of leaves relative to their total initial weight:

1. Calculate total initial weight: $W_{\text{Total},0} = W_{M,0} + W_{S,0}$.
2. Calculate total final weight: $W_{\text{Total},60} = W_{M,60} + W_{S,60}$.
3. Calculate total water loss: $\text{Water Loss}_{\text{Total}} = W_{\text{Total},0} - W_{\text{Total},60}$.
4. Calculate overall percentage water loss: $$\text{Overall Percentage Water Loss} = \frac{W_{\text{Total},0} - W_{\text{Total},60}}{W_{\text{Total},0}} \times 100\%$$

Please provide the weights from the tables if you would like me to perform the calculation.