Science help ,Relative Humidity

1. If the air has 10 g of water vapor yet it could hold 40 g, what is the relative humidity?
A. 25%
B. 20%
C. 40%
D. 4%


2. If there is no difference in the dry and wet bulb, you can assume that the relative humidity is _____?
A. 0%
B. 50%
C. 75%
D. 100%

3. If a sample of air has 20 g of water, but its capacity is 40 g, what is its relative humidity?
A. 0%
B. 50%
C. 75%
D. 100%


4. Relative humidity indicates the _____________________.
A. nearness to saturation for the air
B. probability of precipitation
C. actual amount of water in the air
D. chance of cloud formation
E. chance for evaporation of water


5. If there is a big difference in the dry and wet bulb, you can assume that the relative humidity is ____?
A. Low
B. High

6. The principle of the wet-bulb and dry-bulb thermometers states that ___________________________.
A. evaporation causes cooling
B. evaporation causes heating
C. moving air cools objects
D. the dry-bulb thermometer absorbs water from the wet-bulb thermometer


7. If the data from a sling psychrometer has a wet bulb reading of 10 °C and a dry bulb reading of 20 °C , what is the relative humidity? (Be sure to round to the nearest whole number before subtracting.)





8. Which of the following cities would you expect to have the highest humidity?
A. Butte, Montana - dry bulb = 50° F, wet bulb = 49° F
B. Biscayne, Florida - dry bulb = 80°F, wet bulb = 60° F












please answer something like this

1.~~
2.~~
3.~~
4.~~
5.~~
6.~~
7.~~
8.~~




THANK YOU :)

1. B
2. D
3. B
4. A
5. A
6. A
7. 24% relative humidity
8. B