Write two things you have learned about exploring space and other worlds as a result of reading and listening to “Dark They Were, and Golden-Eyed” and “Danger! This Mission to Mars Could Bore You to Death!”

i guess the cause and effect would show how being around the smoke(the cause) can have negative effects on the body.

explanation:

the answer is a.

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hope this !

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."