| 1 |
The fossil fuels are |
- A. Coal
- B. Oil
- C. Gas
- D. All a,b and c
|
| 2 |
The earth surface covered with water is |
- A. 35%
- B. 11%
- C. 21%
- D. 33%
|
| 3 |
In spermatophytes important step in land adaptation is the evolution. |
- A. Seed coat
- B. Fruit
- C. Pollen tube
- D. Flower
|
| 4 |
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
|
| 5 |
Which of the following is NOT recycled in ecosystem? |
- A. Carbon
- B. Sulphur
- C. Energy
- D. Water
|
| 6 |
At the time of independence in 1947 the population of pakistan was |
- A. 10 m
- B. 20 m
- C. 25.7 m
- D. 32.5 m
|
| 7 |
What will be the age of willow tree 10 centimeter long and 70 centimeter in diameter |
- A. 40 years
- B. 50 years
- C. 60 years
- D. 70 years
|
| 8 |
Ecosystem present on land or soil is called. |
- A. Terrestrial
- B. Atmosphere
- C. Lithosphere
- D. Both a and c
|
| 9 |
Temperate deciduous forest are located in Pakistan at. |
- A. Chilas
- B. Mian wali
- C. Shogran
- D. Sindh
|
| 10 |
Coniferous forest located at high attitude are called. |
- A. Boreal
- B. Alpine
- C. Talga
- D. Prailes
|