Question

1. bituminous coal is made of approximately what percentage of carbon?

a. 50%
b. 60%
c. 80%
d. 90%

1. which form of coal is the hardest and has the highest carbon content?

a. peat
b. lignite
c. bituminous coal
d. anthracite

1. what type of rock traps petroleum and natural gas beneath it?

a. cap rock
b. sandstone
c. limestone
d. shale

1. what process splits the nucleus of a heavy atom into smaller fragments?

a. nuclear fusion
b. nuclear fission
c. carbonization
d. hydrolysis

1. what element is commonly used as fuel in nuclear fission reactors?

a. uranium - 235
b. hydrogen
c. helium
d. carbon - 14

1. which of the following is an advantage of nuclear power plants?

a. they produce air pollution.
b. they require fossil fuels to operate.
c. they produce no air pollution.
d. they generate large amounts of greenhouse gases.

1. what is the main byproduct of nuclear fusion?

a. carbon dioxide
b. helium nuclei
c. uranium waste
d. methane gas

1. at what temperature do fusion reactions occur?

a. 1,500°c
b. 15,000°c
c. 15,000,000°c
d. 150,000°c

Explanation:

• Question 3: Bituminous coal has approximately 80% carbon content.
• Question 4: Anthracite is the hardest coal with the highest carbon content.
• Question 5: Cap rock traps petroleum and natural gas beneath it.
• Question 6: Nuclear fission splits the nucleus of a heavy atom.
• Question 7: Uranium - 235 is commonly used as fuel in nuclear fission reactors.
• Question 8: Nuclear power plants produce no air pollution (compared to fossil - fuel plants).
• Question 9: Helium nuclei are a main byproduct of nuclear fusion.
• Question 10: Fusion reactions occur at extremely high temperatures like 15,000,000°C.

Answer:

1. c. 80%
2. d. Anthracite
3. a. Cap rock
4. b. Nuclear fission
5. a. Uranium - 235
6. c. They produce no air pollution.
7. b. Helium nuclei
8. c. 15,000,000°C