The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made? (1 point)

Question

• The air holds little water vapor and is relatively dry.
• The temperature must rise in order for air to become saturated with water vapor.
• The dew point temperature is 90% of the air temperature.
• The amount of water vapor in the air is 90% of what the air can hold

Answer 1

The correct conclusion from the given options is:

• The amount of water vapor in the air is 90% of what the air can hold.

This statement is a direct representation of what relative humidity means: it indicates the current amount of water vapor in the air as a percentage of the maximum amount of water vapor the air can hold at that temperature. In this case, with a relative humidity of 90%, the air is holding 90% of the water vapor capacity at 70 degrees Fahrenheit.