Question detail

What is a limitation of traditional mining compared to biological methods?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Using the Earth's resources and obtaining potable water

Question

A. It requires moving and disposing of large amounts of rock
B. It is less efficient in extracting metals
C. It produces more waste
D. It is more expensive

Answer

The correct option is It requires moving and disposing of large amounts of rock. This answer is correct because it matches the approved learning objective to evaluate biological methods of metal extraction from information provided. (HT only) in the subtopic Alternative methods of extracting metals.

Explanation

The correct option is It requires moving and disposing of large amounts of rock. It requires moving and disposing of large amounts of rock is correct because it directly supports the approved learning objective to evaluate biological methods of metal extraction from information provided. (HT only). This belongs to the subtopic Alternative methods of extracting metals within Using the Earth's resources and obtaining potable water, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Alternative methods of extracting metals.

Common mistake

Misunderstanding Biological Methods

Students often confuse the processes of phytomining and bioleaching, thinking they are the same.

Do not treat this as a general statement about HT only. Instead, answer by clearly linking the correction to evaluate biological methods of metal extraction from information provided. (HT only) in Alternative methods of extracting metals. This keeps the response inside Using the Earth's resources and obtaining potable water and prevents a vague or off-topic GCSE answer. The mistake to avoid is: students often confuse the processes of phytomining and bioleaching, thinking they are the same.

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