1 |
According to latest estimates: |
90% land surface is under forests
Natural vegetation has absolutely finished
Only 10% area is under forests
25 to 30% land surface is under forests -- about 26.19%
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2 |
In the quickly populated areas of the world: |
Natural vegetation is thick
Vegetation covers 80% earth surface
Natural vegetation covers limited area
Natural vegetation is absent
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3 |
Eleven thousand years before today: |
100% land surface was covered with vegetation
Forest areas are limited
There was no forests
45% land surface was under forests
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4 |
Tropical Evergreen forests: |
Are found in desert areas
Are found in Tundra region
Are found in Equatorial region
Are found cold areas
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5 |
In the growth of the National vegetation; |
The role of temperature is very important
Temperature does not play any role
Role of man is prominent
Role of relief is prominent
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6 |
With the increase of temperature evaporation from plants |
Becomes fast
Becomes slow
Becomes very slow
Becomes at zero level
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7 |
World's natural rubber forests are found |
In equatorial region
In Tundra region
In Europe
In Australia
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8 |
In equatorial rain-fed forests region annual rainfall is |
Very less
More than 80 inches
Very meagre
Up to 30 inches
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9 |
In equatorial rain-fed forests due to heavy rainfalls |
Soil is very fertile
Fertile soils are limited
Clayey soils are found
Sandy soils are found
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10 |
World's evergreen rain-fed equatorial forests covers |
10% area of the total forests
5% area of the total forests<br>
49% area of the total forests
95% area of the total forests
|
11 |
World's evergreen forests |
Remains evergreen throughout year
Do not remain evergreen year around
Shed their leaves during winters
Shed their leaves in summers
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12 |
Plants obtain from air |
Carbon dioxide
Nitrogen
Water
Mineral particles
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13 |
The larges equatorial rain forests are in |
Germany
India
Canada
Brazil
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14 |
With the gradual increase of population |
Forests area is increasing
Forests importance is becoming less
Area under forests is becoming less
Forests areas is expanding
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15 |
German People's saying is that natural vegetation is |
Universal raw material
Major source for industries
Basic need for human beings
Not important thing
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