| 1 |
Plants obtain from air: |
- A. Carbon dioxide
- B. Nitrogen
- C. Water
- D. Mineral particles
|
| 2 |
Eleven thousand years before today |
- A. 100% land surface was covered with vegetation
- B. Forests areas was limited
- C. Three was no forests
- D. 45% land surface was under forests
|
| 3 |
Evergreen oak plant is found in: |
- A. Tundra region
- B. Mediterranean region
- C. Equatorial region
- D. Desert region
|
| 4 |
In equatorial rain-fed forests due to heavy rainfalls: |
- A. Soil is very fertile
- B. Fertile soils are limited
- C. Clayey soils are found
- D. Sandy soils are found
|
| 5 |
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%
|
| 6 |
Bluta wood is used for: |
- A. Preparation of quality furniture
- B. No use of it
- C. Paper preparation
- D. Sports goods
|
| 7 |
In the thickly 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
|
| 8 |
Between 30°-40° latitudes at the western margins of continents: |
- A. Equatorial rain forests are found
- B. Tundra vegetation is found
- C. Mediterranean evergreen forests are found
- D. Thick forests are found
|
| 9 |
World's evergreen forests |
- A. Remains evergreen throughout year
- B. Do not remain evergreen year around
- C. Shed their leaves during winters
- D. Shed their leaves in summers
|
| 10 |
Important plant of Mediterranean region: |
- A. Teak plant
- B. Deodarplant
- C. Oliveplant
- D. Mahoganyplant
|
