The answer is 2 because its the outside number and not in the parentheses
Answer: solar radiation
Explanation: Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface Shortwave radiation reflected back to space by clouds.
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An example of homeostasis would be sweating when the temperature is hot.
Oxygen enters the blood in the A. Bronchi.
