| 1 |
The solar energy falling on the atmosphere of Earth is almost: |
- A. 1.2 Kilowatt per square meter
- B. 1.4 kilowatt per square meter
- C. 1.6 kilowatt per square meter
- D. 1.8 kilowatt per square meter
|
| 2 |
The practically unit of electricity is; |
- A. kilowatt hour
- B. watt
- C. Joule
- D. Ampere
|
| 3 |
Natural gas is measured in: |
- A. square meter
- B. cubic meters
- C. Btu
- D. B and C both
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| 4 |
The ability to do work is called. |
- A. Power
- B. Force
- C. Energy
- D. All of them
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| 5 |
Breaking of the heavy nucleus of an atom is called: |
- A. Nuclear fission
- B. Nuclear fusion
- C. conservation
- D. pollution
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| 6 |
The cause of thermal pollution; |
- A. only green house effect
- B. only nuclear reactors
- C. only fossil fuels
- D. All , A, B and C
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| 7 |
Themethod of production of electricity that does not produce pollution is. |
- A. Hydroelectirc power
- B. Thermal power
- C. Nuclear power
- D. Burning of biogas
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| 8 |
Cause of air pollution is. |
- A. Carbon Monoxide
- B. Sulphur di oxide
- C. Nitrogen oxide
- D. All of them
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| 9 |
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.
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| 10 |
One kilowatt-hour is the amount of energy that is consumed by a ........ applicance in one hour. |
- A. 1000 watt
- B. 100 watt
- C. 10000 watt
- D. 500 watt
|