Explain why trench warfare was used and 2 negative aspects of the trench’s in WW1.

plz help I’m confused

-to have war

-may were killed by BOMBS

-TNT COULD BE LAUNCHED AND THE soldires cound etout of the way

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while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.