Advertisements
Advertisements
प्रश्न
What is relative humidity? How does it differ from absolute humidity?
उत्तर
The relative humidity is the ratio of the actual amount of water vapour present in the air and the total amount the air can hold at a given temperature. It is expressed in percentage.
While absolute humidity is measured in grams per cubic meter.
APPEARS IN
संबंधित प्रश्न
Write true or false. Correct the false statement.
A rise in temperature causes more condensation while a fall in temperature results in evaporation.
Name the various forms of precipitation.
Give a brief description of the Westerlies in the northern hemisphere.
What are the local winds? Give a few examples.
What is wind? What precautions must be taken while placing a wind vane?
What is the weather report?
How is the weather forecast made? Why is weather forecast necessary?
This could be a classroom activity. If your school laboratory has an anemometer, use it to record your city’s wind speed for a week. Use the Beaufort Scale to find out the character of wind during these days. Record your observations carefully in your notebook. You could even draw small neat sketches to show the effect of the wind.
What are the elements of weather?
Complete the following table.
| Weather | Climate |
| Short-lived condition of atmosphere | |
| Does not change quickly | |
| Expressed with respect to a specific place | |
| Elements of climate: Temperature, pressure, winds, humidity and precipitation |
