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✅Explanation to Question 7👆👆 🔴Hibernation is a state of inactivity and metabolic depression in animals that helps them conserve energy during the winter months when food is scarce. During hibernation, an animal's body temperature, heart rate, and breathing rate all decrease significantly, allowing them to survive on stored body fat until spring when food becomes more abundant. 🔴It is not a summer sleep or an adaptation to escape from predators, although some animals may use hibernation as a way to avoid predators during the winter months.

🔴The main reason for the blueness of the sky is due to a phenomenon called Rayleigh scattering. ✅As sunlight enters the Earth's atmosphere, it collides with gas molecules, such as nitrogen and oxygen. These collisions cause the sunlight to scatter in all directions. However, shorter wavelengths of light, such as blue and violet, are scattered more than longer wavelengths, such as red and orange. This is because shorter wavelengths are more easily absorbed and re-emitted by the gas molecules. ✅As a result, when we look up at the sky, we see more blue light scattered in all directions than any other color, making the sky appear blue. This effect is also why sunsets and sunrises often appear red or orange, as the longer wavelengths of light are scattered more during these times of day.