| 1 |
Cause of air pollution is. |
- A. Carbon Monoxide
- B. Sulphur di oxide
- C. Nitrogen oxide
- D. All of them
|
| 2 |
The part of atmosphere where all living bodies reside is................ thick. |
- A. 4 to 10 km
- B. 6 to 18 km
- C. 8 to 20 km
- D. 10 to 20 km
|
| 3 |
The unit of energy is. |
- A. Newton
- B. Metre
- C. Joule
- D. Second
|
| 4 |
One Btu is equal to. |
- A. 1100 joules
- B. 1055 Joules
- C. 1050 Joules
- D. 1040 Joules
|
| 5 |
Natural gas is measured in: |
- A. square meter
- B. cubic meters
- C. Btu
- D. B and C both
|
| 6 |
The energy due to motion is called. |
- A. Potential energy
- B. Kinetic energy
- C. Nuclear energy
- D. Chemical energy
|
| 7 |
We can save eenrgy. |
- A. 1- By increaisng personal vehicles.
- B. 2- By making vehicles of beavier bodies.
- C. 3- By not walking
- D. 4- By avoiding unnecessary of energy.
|
| 8 |
The cause of thermal pollution; |
- A. only green house effect
- B. only nuclear reactors
- C. only fossil fuels
- D. All , A, B and C
|
| 9 |
Organic material and their residues are called: |
- A. Biomass
- B. Nuclear waste
- C. Smog
- D. Garbage
|
| 10 |
The production of electricity from tides of water is called: |
- A. Wind power
- B. Thermal power
- C. Tidal power
- D. Nuclear power
|