1 |
With the gradual increase of population: |
- A. Forest area is increasing
- B. Forests importance is becoming less
- C. Area under forests is becoming less
- D. Forests areas is expanding
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2 |
With the gradual increase of population |
- A. Forests area is increasing
- B. Forests importance is becoming less
- C. Area under forests is becoming less
- D. Forests areas is expanding
|
3 |
Plants obtain from air |
- A. Carbon dioxide
- B. Nitrogen
- C. Water
- D. Mineral particles
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4 |
According to latest estimates: |
- A. 90% land surface is under forests
- B. Natural vegetation has absolutely finished
- C. Only 10% area is under forests
- D. 25 to 30% land surface is under forests -- about 26.19%
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5 |
World's evergreen rain-fed equatorial forests covers |
- A. 10% area of the total forests
- B. 5% area of the total forests<br>
- C. 49% area of the total forests
- D. 95% area of the total forests
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6 |
In coniferous forest region plants: |
- A. Become mature in limited period
- B. Become mature within 50 to 60 years
- C. Become mature within 10 years
- D. Growth is very fast
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7 |
Twelve percent of world's total forests are: |
- A. Desert forests
- B. Deciduous forests
- C. Equatorial forests
- D. Mediterraneanforests
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8 |
Coniferous Evergreen forests covers how many percentage of total forest area of the world forests ? |
- A. 80 percent
- B. 35 percent
- C. Very small area
- D. 5 percent
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9 |
Coniferous evergreen forests are found: |
- A. Between 0°-5° latitudes
- B. Between 30°-45° latitudes
- C. Between 60°-70° latitudes
- D. Between 20°-30° latitudes
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10 |
In the quickly populated areas of the world: |
- A. Natural vegetation is thick
- B. Vegetation covers 80% earth surface
- C. Natural vegetation covers limited area
- D. Natural vegetation is absent
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