Question

language arts english ii
be especially sensitive to threats and may be less likely to recover following collapses\ of their populations.
18 a major concern, says hampton, is that biodiversity loss in the lakes is happening on comparatively short time scales.
19 tens of thousands of years after these lakes formed, \theyre still with us,\ hampton says. \long into the future, will they remain?\ the answer, she says, may be up to us.

1. part a

which is a central idea of the text?
a humans need to limit their interactions with ancient lakes, or they will disappear entirely.
b ancient lakes are important historically, biologically, and economically, but they face many threats.
c ancient lakes are critical to the tourism industry, so the industry is leading the fight to save them from losing their biodiversity.
d there will be a loss of biodiversity in ancient lakes unless scientists can figure out how to add the right nutrients to the water.

1. part b

which quotation from the text supports the answer in part a?
a \the lakes also support major economies, including fisheries and tourism. but its these very uses that are degrading the ecological, socioeconomic, and scientific value of many ancient lakes, found hampton and colleagues.\ (paragraph 6)
b \in doing so, we hope to encourage future comparative ecological studies across ancient lakes worldwide.\ (paragraph 9)
c \in lake victoria, for example, decreased water clarity has affected the reproduction of endemic cichlid fish, leading to the disappearance of dozens of species. these colorful fish are prized around the world.\ (paragraph 14)
d \in lake tahoe, impaired water clarity has precipitated declines in populations of deep - water invertebrates and other species.\ (paragraph 15)

Explanation:

For Part A, the text emphasizes the historical, biological importance of ancient lakes and the threats they face, which aligns with option B. For Part B, option A mentions the economic uses of lakes and how they are degrading the value of ancient lakes, supporting the idea in Part A that ancient lakes are important but face threats.

Answer:

1. Part A: B. Ancient lakes are important historically, biologically, and economically, but they face many threats.
2. Part B: A. "The lakes also support major economies, including fisheries and tourism. But it's these very uses that are degrading the ecological, socioeconomic, and scientific value of many ancient lakes, found Hampton and colleagues." (paragraph 6)