Answer: Your brain constantly gets signals from your body which detect the amount of oxygen and carbon dioxide in your blood. Your brain will send signals to the muscles involved in breathing and adjust your breathing rate depending on how active you are.
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B I’m pretty sure if not it’s d But I always say go with ur gut but B
        
             
        
        
        
Answer:
Sugar is made up of carbon, hydrogen and oxygen atoms. It's the way these atoms are connected that makes each type of carbohydrate different. In each molecule of table sugar there are: 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms. The black stuff is called burnt sugar!
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Answer: Gamma Rays
Explanation: They have the shortest wavelength, so they are the most intense ones. It might help to associate it with the Hulk.