Someone please help with this climate question i didn’t know what subject to pick

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Match with o for organic and i for inorganic for each compound

Any sound above what db can cause hearing loss in human beings