| 1 |
Cyclones in the Arbian sea are formed mostly from Mid-of-May till mid -of |
June
July
August
September
|
| 2 |
In Karachi the day temperaute in winter season in about. |
10 oC
26 oC
36 oC
62 oC
|
| 3 |
Karachi have rainy season from July to. |
August
Decmber
September
October
|
| 4 |
A new type of smog, known as photochemical smog, was first described in. |
1930 s
1940s
1950s
1960s
|
| 5 |
It will causemor edramatic water shortages and continue to increase then risk of wild fires. |
Disappearing glaciers
Easly snow melt
Severe droughts
All of these
|
| 6 |
Without green house gases, our Earth would be abut........ degrees colder than it is today. |
10
20
30
40
|
| 7 |
It is the warmest decade ever reorded, with rising globla average teperature. |
1980-1990
1990-2000
2000-2010
2011-2020
|
| 8 |
It is a powerful green house gas whihc is contributing in cliamate change released by the use of both commercial and organic fertilizers. |
Oxygen
Carbon monoxide
Nitrogen oxide
Sulphur dioxide
|
| 9 |
Deforestation is responsible for the greenhouse gases in the atmosphere upto. |
10%
15%
20%
25%
|
| 10 |
The climate on the Earth has been changing since it formed....... billion years ago. |
2.5
3.5
4.5
5.5
|
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