Question: Everyone knows that there is no water on Mars. What type of propaganda technique does the sentence use?
Answer: Bandwagon technique.
Step-by-step explanation: A propaganda technique is used for the purpose of swaying the opinions of an audience.
The bandwagon technique refers to the idea that if it is good enough for the group, then it is good enough for you. In some ways, it's similar to peer pressure because it persuades people to accept or reject an argument. In other words, it's objective is to make people adopt a program or belief by saying that "everyone else is doing it."