| 1 |
Ecosystem present on land or soil is called. |
- A. Terrestrial
- B. Atmosphere
- C. Lithosphere
- D. Both a and c
|
| 2 |
Which one is not desert. |
- A. Thar
- B. Thal
- C. Sahara
- D. Talga
|
| 3 |
A change in the community structure of an ecosystem over a period of time is: |
- A. Ecological niche
- B. Ecological mutation
- C. Succession
- D. Genetic Drift
|
| 4 |
In spermatophytes important step in land adaptation is the evolution. |
- A. Seed coat
- B. Fruit
- C. Pollen tube
- D. Flower
|
| 5 |
Lavering is the characteristic of. |
- A. Tundra
- B. Desert
- C. Grass land
- D. Talga
|
| 6 |
The fossil fuels are |
- A. Coal
- B. Oil
- C. Gas
- D. All a,b and c
|
| 7 |
A natural process in which surface soil is removed by the action of water or wind is |
- A. Corrosion
- B. Attrition
- C. Erosion
- D. Weathering
|
| 8 |
In succesion lithoseres takes place on: |
- A. Sand
- B. Water
- C. Forest floor
- D. Bare rocks
|
| 9 |
Desert ecosystem of Bhakkar and Mian wali is called. |
- A. Thal
- B. Thar
- C. Cholistan
- D. Rohi
|
| 10 |
The average rain fall in temperate deciduous forest is between |
- A. 600-1500 mm
- B. 650 -1500 mm
- C. 750-1500 mm
- D. 700 -1500 mm
|