🧠"Increased urbanization has led to more challenges in public transportation, resulting in longer commute times and overcrowded systems. This urban sprawl necessitates innovative solutions to enhance efficiency and accessibility."

🔑:The main argument of the passage is that urbanization creates significant challenges for public transportation, which requires innovative solutions to improve efficiency and accessibility.

🧠The article highlights that climate change is causing ice caps to melt, drastically reducing polar bears' hunting grounds and leading to diminished food sources. As a result, polar bears face increased risks of malnutrition and population decline.

🔑:The article emphasizes that climate change is melting ice caps, which decreases polar bears' hunting grounds and food availability, resulting in malnutrition and a declining population.

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🔑:The establishment of the United Nations was primarily driven by the devastation caused by World War II, aiming to prevent such conflicts in the future and promote international cooperation.

🧠"We need to finish this project ASAP."

🔑:"It is imperative that we complete this project as soon as possible."

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🔑:1. Improved cardiovascular health: Regular exercise strengthens the heart and improves blood circulation. 2. Enhanced mental well-being: Physical activity releases endorphins, which can alleviate stress and anxiety. 3. Weight management: Consistent exercise helps to regulate body weight and reduce body fat.

🧠"The team are preparing their presentation for next week’s meeting."

🔑:The corrected sentence is: "The team is preparing its presentation for next week’s meeting."