QUESTION TEXT: Special kinds of cotton that grow fibers…
QUESTION TYPE: Must Be True
FACTS:
- Green and brown cotton is now commercially viable, since it can be spun by machine.
- It wasn’t commercially viable until recently, when a long-fibered type was made.
- The cotton doesn’t have to be dyed.
- So it costs less for processing plants, and they don’t have to deal with dye waste.
ANALYSIS: This is subtle. The green and brown cotton wasn’t valuable until someone invented a variety that could be spun on a machine.
This means that when it couldn’t be spun on a machine (i.e. when it was spun by hand), the cotton wasn’t valuable.
___________
- This is tempting, but we only know there are fewer ecological problems due to dye. But green and brown cotton could cause other ecological problems that regular cotton doesn’t.
- CORRECT. This is true because green and brown cottons weren’t commercially viable until we made varieties that could be spun using a machine.
- We’re not told anything about hand-spun cotton, except that green and brown cottons weren’t commercially viable without machines.
- We aren’t told anything about regular cottons or synthetics.
- Hard to say. We save money on dyes, but maybe green and brown cotton costs more in other ways.
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