Which statement accurately describes humidity? A. Humidity is a measure of dew in the air.
B. Colder air promotes more evaporation.
C. Cold air holds more moisture than warm air.
D. Humidity refers to the amount of water vapor in the air.

D. Humidity refers to the amount of water vapor in the air

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

heats surface water up