Question

back from extinction
(1) most people know that the dinosaurs are extinct. (2) scientists believe that the effects of a giant asteroid killed them off around 65 million years ago. (3) clouds of dust from the object’s impact rose into the air and blocked the sun’s light. (4) the lack of sunlight caused temperatures to fall and kept plants from growing. (5) the dinosaurs may be long gone, but recently some animals and plants once thought extinct have been discovered alive.
(6) the chuscan peccary is an ancient pig with thick, wiry hair. (7) the peccary is related to the pig. (8) unlike the farmyard animal, the peccary eats only plants. (9) scientists thought this mammal once roamed prehistoric north america and died out around 11,000 years ago. (10) that was around the time of the last ice age. (11) this theory was based on a fossil of a related species found in the 1930s. (12) amazingly, in the 1970s, some of these peccaries were discovered by scientists living in paraguay, a remote area.
(13) also lost and thriving, the species are now on an international list of threatened species.
(14) the dawn redwood is a tree also known as the dawn redwood. (15) redwood trees were among the earliest plants to evolve on earth. (16) redwoods may have been an important source of food for plant - eating dinosaurs. (17) the dawn redwood was thought to have become extinct around sixty - five million years ago. (18) but in the 1940s, scientists discovered some of these 220 - foot - tall trees growing in china. (19) today, the dawn redwood is considered “endangered.”
(20) scientists thought a group of fish called coelacanths died out about the same time as the dinosaurs and for the same reasons.
(21) the coelacanth was a six - foot - long ocean - dwelling fish. (22) it weighed around two hundred pounds. (23) however, since the 1930s, several types of this fish have been discovered off the coasts of south africa and indonesia. (24) like the chuscan peccary, it can still be found and is thriving, but it’s still here.
(25) it is not clear whether these species have come back from extinction or if they never went away. (26) scientists are also not sure why humans have only encountered them in the last century. (27) it may have to do with the nature of exploration. (28) by the middle of the twentieth century, inventors had mapped most of the planet. (29) in addition, technology had improved to the point that scientists could safely explore places that were once out of reach. (30) but perhaps we will never know the truth.
april has included a sentence in the second paragraph (sentences 6 - 13) that repeats information. which sentence should be removed from this paragraph?
a sentence 7
b sentence 8
c sentence 9
d sentence 10

Explanation:

To determine which sentence repeats information, we analyze each option:

• Sentence 7: Discusses the Chacoan peccary's relation to the pig, introducing the species.
• Sentence 8: Compares the peccary to the farmyard animal (pig) and mentions its diet, adding new info.
• Sentence 9: States scientists' thought on its extinction and death time, new info.
• Sentence 10: Says the theory was based on a fossil, which is redundant as Sentence 11 (not listed here but contextually, Sentence 10 repeats the time frame or theory basis? Wait, re - evaluating: The second paragraph (sentences 6 - 13) is about the Chacoan peccary. Sentence 7 introduces it, Sentence 8 - 9 give details. Sentence 10: "That was around the time of the last Ice Age." Sentence 11: "This theory was based on a fossil...". Wait, maybe Sentence 10 repeats the time info from earlier? No, let's check the original passage. Wait, the question is about the second paragraph (sentences 6 - 13) having a repeated sentence. Wait, maybe Sentence 10 is redundant? No, let's re - look. Wait, the options are A: Sentence 7, B: Sentence 8, C: Sentence 9, D: Sentence 10. Wait, maybe Sentence 10 repeats the time information from another sentence? Wait, no, let's think again. Wait, the key is "repeats information". Let's check each:
• Sentence 7: "The peccary is related to the pig." New info.
• Sentence 8: "Unlike the farmyard animal, the peccary eats only plants." New info.
• Sentence 9: "Scientists thought this mammal once roamed predator North America and died out around 11,000 years ago." New info.
• Sentence 10: "That was around the time of the last Ice Age." "That" refers to 11,000 years ago, so it's repeating the time info from Sentence 9. So Sentence 10 repeats information.

Answer:

D. Sentence 10