Answer:
Tone is and attitude toward the writer. It conveys through the choice of words, or the viewpoint of a particular subject. It can be formal or informal, serious, cheerful or sad.
Explanation
The purpose of the ad is to encourage people to take steps to avoid illness, as shown in the last answer option.
We were able to reach this answer because:
- The announcement shows how prevention measures must be followed to avoid the spread of diseases.
- This is done to ensure the safety of the population, avoid overburdening the health service and protect those most sensitive to infections.
Thus, the advertisement fulfills a public service function which is to promote the protection of society.
More information about the public service at the link:
brainly.com/question/14452199
Yes it is diffusion ..
explanation :
diffusion is the movement of particles from high concentration to low concentration ..
as the smoke rises at one corner of the room soon it spreads all over the room which is simply diffusion ..