Heavy rain and floods in Sydney

The video begins with a question, 'Someone here?', aimed at engaging the audience and prompting interaction.

What is the initial focus of the video?

• A question to engage the audience

• A detailed explanation of a concept

• A summary of the entire video

• A demonstration of a skill

What is the main question posed in the video?

• Is anyone present?

• Why is this important?

• What is the topic of discussion?

• How does the concept work?