Question

This excerpt is from a book that explains the science of everyday objects like tall buildings, bicycles, and automobiles.,end italics,



from ,begin bold,Atoms under the Floorboards,end bold,

questions for this text

This question has two parts. Answer Part A, and then answer Part B.



,begin emphasis,Part A,end emphasis,
This sentence is from the passage.



"Cars are built around engines, and engines (or internal combustion engines, to give them their full name) burn petrol with oxygen in the air to release the energy locked inside ,begin emphasis,it,end emphasis,." (Paragraph 3)



What does the word ,begin emphasis,it,end emphasis, refer to in this sentence?

Question 1 Answer options with 4 options
1.
the engine

2.
the petrol

3.
the oxygen

4.
the air

Part B,end emphasis,
Which detail from paragraph 3 ,begin emphasis,best,end emphasis, supports the correct answer from Part A?

Question 2 Answer options with 4 options
1.
"explodes into power"

2.
"burning as a way of making fire"

3.
"a chemical reaction"

4.
"just ,begin italics,happens,end italics, to produce heat"

Answer 1

Part A: 2 — the petrol.

Part B: 1 — "explodes into power."
Explanation: that phrase shows the petrol releasing its stored energy when burned, which supports that "it" refers to the petrol.