Time Left:
600
sec
1. In what form is water present in the atmosphere?
A. A.) Gas, liquid and solid
B. B.) Snow
C. C.) Water vapor
D. D.) Humidity
2. What is the water vapor in the air called?
A. A.) Humidity
B. B.) Gas
C. C.) Liquid
D. D.) Solid
3. What is the moisture in the air called regardless of temperature?
A. A.) Absolute humidity
B. B.) Absolute steam
C. C.) Dew
D. D.) Fog
4. What is called to a water vapor in a water-air mixture compared to the possible maximum amount?
A. A.) Relative humidity
B. B.) Absolute humidity
C. C.) Water vapor
D. D.) Humidity
5. What is it called when a sample of air reaches saturation point of temperature?
A. A.) Absolute humadity
B. B.) Evaporation
C. C.) The atmosphere
D. D.) Dew
6. Due to which reason the amount of water vapor in the atmosphere decreases and increases?
A. A.) Evaporation or condensation
B. B.) Different gases
C. C.) Wind
D. D.) Humidity
7. How liquid turns in to gas?
A. A.) Humidity
B. B.) Gas formation
C. C.) Winds
D. D.) Evaporation
8. What is the main cause of evaporation?
A. A.) Temperature
B. B.) Humidity
C. C.) Helium
D. D.) None of the above
9. What is latent heat of vaporization?
A. A.) The temperature at which vaporization begins
B. B.) Heat
C. C.) Air without vapor
D. D.) None of the above
10. What is called to air which holds as much water vapor as it can with 100% relative humidity?
A. A.) Saturated air
B. B.) Intense air
C. C.) Watery air
D. D.) None of the above
11. What is the conversion of water vapor into water called?
A. A.) Condensation
B. B.) Water vapor
C. C.) Intense
D. D.) Speed
12. What is the cause of condensation?
A. A.) Water
B. B.) Condensation
C. C.) Humidity
D. D.) Temperature reduction
13. When does air’s capacity to hold water vapor ends?
A. A.) When the humid air cools
B. B.) When water vapor gets hot
C. C.) When the weather gets windy
D. D.) None of the above
14. When does condensation occur?
A. A.) Consolidation center
B. B.) Because of the ocean
C. C.) When the small particle gets cold all around
D. D.) Changed
15. What are small particles called when they cool around in free air?
A. A.) Condensation nucleus
B. B.) Water
C. C.) Moist
D. D.) The air
16. What gets affected by temperature, pressure and humidity of air?
A. A.) Consolidation
B. B.) Gas
C. C.) Temperature
D. D.) Humid
17. After condensation in which form it could be converted?
A. A.) Dew, fog, frost, cloud
B. B.) Humidity, fog
C. C.) Vapor, cloud
D. D.) None of the above
18. What happens when the dew point falls below the frozen point?
A. A.) Condensation
B. B.) The fog
C. C.) Frost
D. D.) A cloud
19. What is it called when the moisture in the air does not condense instead it turns into droplets on the solids like stones, grass or cold drops on the leaves of plants?
A. A.) Dew
B. B.) Humidity
C. C.) Point
D. D.) Frost
20. What is necessary for the formation of dew?
A. A.) Temperature above the dew point
B. B.) Frost
C. C.) Humidity
D. D.) The air
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