It involves a systematic process
Some ways to reduce stress is Walking your dog it’s great to reduce pressure and stress,Another way is Going for a bike ride and getting fresh air, watching a movie or a tv show is great to get your mind of everything that is making you stressed. meditation include better focus and concentration, improved self-awareness and self-esteem, lower levels of stress and anxiety, and fostering kindness. Meditation also has benefits for your physical health, as it can improve your tolerance for pain and help fight substance addiction
d. O2
This is because CO2 (Carbon Dioxide), energy (sunlight), and H2O (water) are all outputs of cellular respiration.
I think it’s the first one - a , but I could be wrong
