Question
Which statement about fuels is correct?
A. Heat energy is only produced by burning fuels.
B. Hydrogen is used as a fuel although it is difficult to store.
C. Methane is a good fuel because it produces only water when burned.
D. Uranium is burned in air to produce energy.
Answer/Explanation
Ans:
B
Question
The pie chart represents the composition of natural gas.
Which sector represents methane?
Answer/Explanation
Ans: D
Question
Fuel X produces carbon dioxide and water when it is burned in air. So does fuel Y.
What could X and Y be?
Answer/Explanation
Ans: D
Question
Which fuel could be gasoline?
Answer/Explanation
Ans:
A