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Read the passage: 'In 1911, two competing exploration teams raced to become the first humans to reach the South Pole. Roald Amundsen of Norway led one team, selecting cross-country skis and trained sled dogs adapted to severe cold. Meanwhile, Robert Falcon Scott of Britain relied on motorized sleds and ponies. Scott's motorized sleds broke down quickly in the deep snow, and the ponies struggled in icy winds. Amundsen reached the South Pole first on December 14, 1911, returning safely, whereas Scott's team suffered extreme hardship.' Which factor contributed MOST directly to Amundsen's success compared to Scott?

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Read the passage: 'Coral reefs occupy less than one percent of the ocean floor, yet they support nearly 25 percent of all marine species. These vibrant underwater structures are built by tiny organisms called coral polyps that secrete calcium carbonate skeletons. However, rising sea temperatures cause corals to expel the beneficial algae living in their tissues, a damaging process known as coral bleaching. Without these algae, corals lose their vibrant color and primary food source, putting the entire reef ecosystem at risk.' Which statement best synthesizes the relationship between coral polyps and reef ecosystems?

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Read the text: 'Although both renewable energy sources generate clean electricity without fossil fuels, wind turbines and solar panels function under different natural conditions. Wind turbines rely on kinetic energy from moving air currents to turn massive blades connected to a generator. Solar panels, on the other hand, absorb sunlight using semiconductor materials to create an electrical current. Consequently, wind farms operate effectively day or night when breeze is present, whereas solar panels generate power exclusively during daylight hours.' Which statement accurately highlights a key difference described in the text?

Reading Informational

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