Final answer:
The most important way to help prevent the spread of diseases is by washing your hands regularly. Coughing in the air and sneezing into hands are not effective in preventing disease transmission.
Step-by-step explanation:
The most important way to help prevent the spread of diseases is to wash your hands regularly. Washing your hands with soap and water for at least 20 seconds can help remove germs and prevent their transmission. It is essential to wash hands before eating, after using the bathroom, and when they are visibly dirty.
Coughing in the air away from others actually increases the risk of spreading diseases. The correct way to cough is to cover your mouth and nose with a tissue or use your elbow to prevent the spread of droplets.
Sneezing into hands is also not recommended, as your hands can easily spread germs to other surfaces and people. It's best to use a tissue or your elbow to cover your mouth and nose when sneezing.
Learn more about Preventing the spread of diseases