Answer: 2. Polar bears have white fur so that they can camouflage into their environment. 3. Red-eyed frog has developed sticky pads on its feet which help it to climb easily on the trees. 4. Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by availability of food. Birds also migrate for favorable weather for their survival and breeding. 5. temperature, humidity, rainfall and wind speed. Temperature, rainfall, humidity and wind speed are the elements of weather. It determines the weather conditions at a particular place.
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Answer: 2. Polar bears have white fur so that they can camouflage into their environment. 3. Red-eyed frog has developed sticky pads on its feet which help it to climb easily on the trees. 4. Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by availability of food. Birds also migrate for favorable weather for their survival and breeding. 5. temperature, humidity, rainfall and wind speed. Temperature, rainfall, humidity and wind speed are the elements of weather. It determines the weather conditions at a particular place.