Two injured soldiers taken to hospital

This video tutorial demonstrates how to create a simple and easy-to-use water purifier. The instructor provides a step-by-step guide to building the purifier and encourages viewers to subscribe and like the video.

What is the main objective of the video?

• To explain the science behind water purification

• To discuss the history of water purifiers

• To show how to make a simple and easy-to-use water purifier

• To demonstrate how to make a complex water purifier

What is repeated multiple times in the video?

• The process of making a water purifier

• The importance of water purification

• The cost of making a water purifier

• The benefits of using a water purifier

How many times is the phrase 'I'm going to make a water purifier' repeated?

• Five times

• Four times

• Three times

• Two times

What does the narrator ask viewers to do at the end of the video?

• Visit a website for more information

• Subscribe, like, and set the alarm

• Leave a comment

• Share the video with friends

What is the duration of the conclusion section?

• 14 seconds

• 20 seconds

• 10 seconds

• 24 seconds