Read the passage.

Collecting rocks is a fascinating hobby. The specimens are fun to look at and to touch, but what’s most appealing is the story that each rock has to tell.

Which part of a nonfiction book best describes where this passage belongs?

references
introduction
classification
acknowledgements

What sentence correctly uses it’s underlined relative pronoun?

Which of these sentences has an error in subject-verb agreement? a. official procedures calls for students who are tardy three times to serve detention. b. as a result of her efforts, a team of volunteers signs up every month to clean the city's parks. c. the committee of parents protested loudly at the school board meeting. d. each of the neighbors brings a dish to share at the pot-luck gathering.

Which detail from the text best demonstrates the effect of totalitarianism on the animals? "progress was made in the dry frosty weather that followed." "it had been decided to build the walls three feet thick." "they were always cold, and usually hungry as well." "for a long time the quarry was full of snowdrifts and nothing could be done."