Question detail
What is bioleaching?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using the Earth's resources and obtaining potable water
Question
- A. Using bacteria to produce leachate solutions containing metal compounds
- B. Using plants to absorb metal compounds from soil
- C. Using heat to extract metals from ores
- D. Using chemical reactions to purify metals
Answer
The correct option is Using bacteria to produce leachate solutions containing metal compounds. This answer is correct because it matches the approved learning objective to describe bioleaching as using bacteria to produce leachate solutions containing metal compounds. (HT only) in the subtopic Alternative methods of extracting metals.
Explanation
The correct option is Using bacteria to produce leachate solutions containing metal compounds. Using bacteria to produce leachate solutions containing metal compounds is correct because it directly supports the approved learning objective to describe bioleaching as using bacteria to produce leachate solutions containing metal compounds. (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
Confusing Bioleaching with Traditional Mining
Students often confuse bioleaching with traditional mining methods, thinking they are the same process.
Emphasize that bioleaching uses bacteria to produce leachate solutions containing metal compounds, while traditional mining involves physically extracting ores from the earth.
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