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प्रश्न
Name the gases that are found in the air along with their percentage.
उत्तर
Oxygen 21 %, Nitrogen 78%, Argon 0.9%, others 0.1 %
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संबंधित प्रश्न
Name any four natural regions of the world.
Prepare the rainfall graph of the data given below and answer the questions that follow :
| Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sep. | Oct. | Nov. | Dec. | |
| Temp(°C) | 26.9 | 27.6 | 28.7 | 29.1 | 28.4 | 26.5 | 25.9 | 26.0 | 26.4 | 26.8 | 27.1 | 26.9 |
| Rainfall mm | 22.2 | 25.4 | 48.7 | 128.5 | 326.3 | 741.3 | 610.4 | 348.7 | 249.0 | 316.9 | 159.8 | 47.4 |
(a) What is the average annual temperature?
(b) Calculate the annual range of temperature.
(c) In which climate type is this station?
Why are coal and petroleum called fossil fuels?
What is the total percentage of fresh water on the earth?
How is carbon dioxide useful?
How do forests retain water?
What is geothermal energy ? Give examples of geothermal energy.
Define Sericulture
Name any three herbivorous animals from the Sudan region. What has nature endowed them with for self-protection?
What are the characteristics of the Monsoon region?
