Charity workers handing out smog masks

The video provides a brief tutorial on how to adjust your clock, followed by a simple greeting.

What is the main action discussed in the first section of the video?

• Turning your clock

• Setting an alarm

• Changing the battery

• Adjusting the volume

What is the purpose of the second section of the video?

• To explain a complex concept

• To introduce a new topic

• To provide a greeting

• To summarize the video