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tific Texts - Quiz - Level E
make a
Why do experts use one kind of
explosive for steel columns and
another for concrete columns?
e a knife.
Fick. To
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h and a
Steel is stronger than concrete, so it
requires a more powerful explosive.
Steel is sharper than concrete, so it
requires much more explosive.
Experts have to blow up steel columns
but use a special strong fabric to break
apart concrete columns.
Experts must put explosives in holes
for steel columns but wrap explosives
in mesh for concrete columns.
demolition of a

Read these sentences from the excerpt: i would sometimes say to them, i wished i could be as free as theywould be when they got to be men. "you will be free as soon as you aretwenty-one, but i am a slave for life! have not l as good a right to befree as you have? how does the use of a rhetorical question advance the author's purposeof showing that all people deserve freedom? it shows the reader that douglass is unsure of hisstatements.it indicates that douglass believes he deserves freedom.oit demonstrates that douglass is questioning his beliefs.it reminds the reader that some questions areunanswerable