Diatomaceous earth is used for making __________?
Correct answer: D. Fire proof bricks
- A. Fertilizers
- B. Weedicides
- C. Insecticides
- D. Fire proof bricks
Explanation
Diatomaceous earth consists of the accumulated silica shells of diatoms and can withstand high temperatures, so it is used in insulation and fireproof bricks. Students may choose insecticides because the powder can have abrasive insect-killing uses, but fireproof bricks are the intended application here.
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