Which of these was a negative result of the columbian exchange?
a. new crops were grown in africa.
o
b. new food sources were taken to europe.
o
c. disease killed millions of native americans.
o
d. native americans sold furs to europeans.
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Which sentence is punctuated correctly? a. my dad loves to cook, however; he hates to do dishes. b. my dad loves to cook; however, he hates to do dishes. c. my dad loves to cook however, he hates to do dishes.

For english i have to find 4 errors in each diary post

Shape 1 and shape 2 are plotted on a coordinate plane. which statement about the shapes is true? a. shape 1 and shape 2 are not congruent.b. a translation will prove that shape 2 is congruent to shape 1.c. a rotation and a translation will prove that shape 2 is congruent to shape 1.d. a reflection, a rotation, and a translation will prove that shape 2 is congruent to shape 1.