PTE Reading
Re-order Paragraphs
1 questions. Answer them all, then submit once for your section score.
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1.
Re-order Paragraphs
Arrange the sentences into the correct order.
Put the sentences in the correct order:
- That shift toward synthetic chemistry has left a lasting mark on the industry, as textile mills today still grapple with the wastewater pollution the switch introduced.
- This slow, resource-intensive process changed abruptly in the nineteenth century when chemists synthesized the first artificial dye from coal tar derivatives, making vivid, consistent color available at a fraction of the cost.
- Because many plant-based pigments would not bond to fiber on their own, dyers also had to treat the cloth with a mordant, a chemical fixative that let the color grip the fabric permanently.
- Producing a usable dye from these raw materials required soaking, boiling, or fermenting them for days to release the pigment molecules trapped inside.
- Long before synthetic pigments existed, artisans extracted color for cloth from roots, insects, and mineral deposits found close to home.