Chapter 23, Problem 38A

On a clear night, why does more dew form in an open field than under a tree or beneath a park bench?

To determine

To Explain: The reason for formation of more dew in an open field than under a tree beneath a park bench in a clear night.

Explanation of Solution

Introduction:

The dew formation depends on the amount of cloudiness in the sky. On a clear night, the ground easily radiates its heat back to the space.

The open ground radiates heat easily so, it become cool through the process of convection. This allows more condensation and dew formation. Under the park bench or tree, the air is slightly warmer and so, it holds more water vapors. This leads to less condensation and thus, less formation of dew.

Conclusion:

On a clear night, more dew form in an open field than under a tree or beneath a park bench. This is because of change in temperature.