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🔑:Renewable energy sources, such as solar, wind, and hydroelectric power, are replenished naturally and have minimal environmental impact. In contrast, non-renewable energy sources, like coal, oil, and natural gas, are finite and can lead to significant ecological harm during extraction and use.

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🔑:The 1969 moon landing marked a monumental achievement in human history, showcasing the capabilities of science and technology during the Space Race. It symbolized global progress, inspired generations, and represented humanity’s quest for exploration and discovery beyond Earth.

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🔑:1. "Capital in the Twenty-First Century" by Thomas Piketty 2. "The Wealth of Nations" by Adam Smith 3. "Freakonomics" by Steven D. Levitt and Stephen J. Dubner 4. "Globalization and Its Discontents" by Joseph Stiglitz 5. "The Shock Doctrine" by Naomi Klein

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🔑:An ideal vacation destination is Japan, offering a unique blend of ancient tradition and modern innovation. Travelers can experience serene temples, stunning cherry blossoms, and bustling cities like Tokyo, all while enjoying delicious cuisine and rich cultural heritage.

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🔑:Learning a second language enhances cognitive abilities, improves job prospects, and enriches cultural understanding. It allows for better communication and connection with diverse communities, fostering empathy and global awareness.

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🔑:Climate change significantly threatens polar bear habitats as rising temperatures lead to the melting of sea ice, crucial for their hunting and breeding. This loss of habitat forces polar bears to travel farther for food, resulting in decreased survival rates and impacting the entire Arctic ecosystem.