Question detail
Explain why crude oil is described as a finite resource found in rocks.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Carbon compounds as fuels and feedstock
Question
Explain why crude oil is described as a finite resource found in rocks.
Answer
Crude oil is found trapped in rock formations and is finite because it forms from ancient biomass over millions of years. Human extraction and use happen much faster than new crude oil can form, so available reserves are limited.
Explanation
A strong answer must include both parts of the objective: location and resource status. ?Found in rocks? describes where crude oil is trapped underground. ?Finite? means the supply is limited on human timescales because formation from buried biomass is extremely slow.
Common mistake
Finite resource misconception
Students think crude oil can be replenished quickly because it is a liquid that can be pumped out of the ground.
Explain that crude oil is a finite resource formed over millions of years from ancient biomass and cannot be replenished on a human timescale.
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