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🔑:1. Albert Einstein - Developed the theory of relativity. 2. Marie Curie - Pioneered research on radioactivity. 3. Isaac Newton - Formulated the laws of motion and universal gravitation. 4. Charles Darwin - Proposed the theory of evolution by natural selection. 5. Nikola Tesla - Innovated advancements in electrical engineering and electromagnetism.

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🔑:Social media plays a significant role in shaping public opinion by providing a platform for information dissemination and discussion. It allows for immediate access to diverse viewpoints and rapid sharing of content, which can influence perceptions and trends. However, it also poses challenges like misinformation and echo chambers, complicating understanding.

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🔑:Hemoglobin is a crucial protein in red blood cells that binds oxygen in the lungs and transports it throughout the body. Its significance lies in its role in oxygen delivery, which is essential for cellular respiration and energy production, thus supporting overall bodily functions.

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🔑:Key questions to consider include: What is the target market and demand for the product or service? What are the projected costs and revenues? Who are the competitors, and how does the proposal differentiate itself? What are the risks involved, and what strategies are in place to mitigate them?

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🔑:In spring, the blossoms bloom, and colors ignite the day, Summer brings warmth and laughter, in sunlight we play. Autumn whispers softly, as leaves turn to gold, Winter blankets the world, a wonder to behold.

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🔑:Sustainability in environmental practices refers to meeting present needs without compromising the ability of future generations to meet their own. It involves adopting methods that reduce environmental impact, preserve natural resources, and promote ecological balance.