Question

What would be the evaporation from the pond (in mm), if the pan evaporation is 45 mm and the pan coefficient is 0.70?

• A. 13.5 mm
• B. 19.28 mm
• C. 31.5 mm
• D. 64.28 mm

Hint:

To calculate evaporation from a pond, multiply the pan evaporation by the pan coefficient.

Answer 1

The Correct Option is B

Step 1: Using the Pan Evaporation Formul(A)
The evaporation from the pond (\(E_{\text{pond}}\)) can be calculated using the formula: \[ E_{\text{pond}} = E_{\text{pan}} \times \text{Pan Coefficient} \] Where: - \(E_{\text{pan}} = 45 \, \text{mm}\) (pan evaporation) - Pan coefficient = 0.70
Step 2: Substituting the Values.
Substitute the given values into the formula: \[ E_{\text{pond}} = 45 \times 0.70 = 31.5 \, \text{mm} \]
Step 3: Conclusion.
Thus, the evaporation from the pond is 31.5 mm, making option (3) the correct answer.

Final Answer: \[ \boxed{31.5 \, \text{mm}} \]