The answer has to be B 202020 rule for eyes buying expensive earphones is gonna make the audio louder and lights has something to do with your eyesight
When a factory is running or when driving a car that gives off carbon dioxide and that pollutes the air.
Answer
Red light green light is used to work on listening and focus skills.
Have a great day!
Wash hands
wash fruits vegetables etc..
cool to the right temperature
keep certain types of food separate
