Answers Huffman_ELA8_Q1_26-27Cause and Effect in The Evolution of Useful Things

Cause and Effect in The Evolution of Useful Things Answers

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What drove improvements to Scotch® tape in the passage?

Customers finally complained about the problems.

Inventors wanted to fix the tape’s shortcomings.

The manufacturer wanted to make a cheaper product.

The manufacturer had to use up its supply of new dispensers.

When did Spencer Silver discover the formula for the “unglue”?

several years before Fry had his idea

the year before Fry had his idea

at the same time Fry had his idea

soon after Fry had his idea

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