Question

passage 1 passage 2 can the narwhals survive? the environment is changing for the narwhals of the arctic ocean. these odd - looking sea mammals spend most of their time darting under the thick sheets of ice that blanket the area. scientists rarely see them and arent sure exactly how many exist. what is the main way the structure of passage 2 is different from the structure of passage 1? passage 2 explains how the problem of tracking narwhals is solved. passage 2 describes several dangers to narwhals. passage 2 compares narwhals to other sea mammals. passage 2 gives a history of narwhal research.

Explanation:

Without seeing Passage 2, we can only analyze based on the content of Passage 1 which mainly focuses on the changing environment for narwhals. If Passage 2 explains how the problem of tracking narwhals is solved, it would be a different - structured approach as it would be about a solution rather than just the problem of the environment. The other options about dangers, comparisons, or history are not indicated as the main structure of Passage 1.

Answer:

Passage 2 explains how the problem of tracking narwhals is solved.