Which one of the following is an advantage of phytoextraction?
A - OCR Gateway - GCSE Chemistry - Question 12 - 2018 - Paper 1
Question 12
Which one of the following is an advantage of phytoextraction?
A. A high concentration of a metal can be obtained from a low grade ore.
B. Bacteria are used to dis... show full transcript
Worked Solution & Example Answer:Which one of the following is an advantage of phytoextraction?
A - OCR Gateway - GCSE Chemistry - Question 12 - 2018 - Paper 1
Step 1
A high concentration of a metal can be obtained from a low grade ore.
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Answer
This option correctly identifies one of the main advantages of phytoextraction. The process allows for the extraction of valuable metals from ores that contain low concentrations of those metals, making it economically viable and environmentally friendly.
Step 2
Bacteria are used to dissolve metals instead of chemical solutions.
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Answer
This statement describes a different process known as bioleaching, which involves bacteria breaking down ores; it does not pertain specifically to phytoextraction.
Step 3
Better crops of plants are harvested.
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Answer
While phytoextraction may aid in removing toxic metals from soils to improve crop growth indirectly, this option does not explicitly represent an advantage of the phytoextraction process itself.
Step 4
Phytoextraction is a quick process and is not affected by poor weather.
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Answer
This statement is misleading. Phytoextraction can be influenced by weather conditions, as the growth and health of plants can be affected by adverse weather, thereby impacting the efficiency of metal extraction.
