What are some PSA topics?

What are the reasons people are discriminated against? What should you do if he is only sexually attracted to you? When was Union Dues created? How can a predator help to maintain the balance of nature? Where can you find information about water pollution in the Marathi language? What is cyber smart? How is greenhouse like solar panels? What are some weaknesses of planting trees? How is welfare helpful to poor people? Cesar Chavez worked to improve the lives of workers.? How are eucalyptus trees affected by global warming? What is an example of Social Tolerance? What are some ways to prevent wind erosion in a dry sandy area? What part of the tree takes in the CO2? What is a two way catalytic converter? How do you get rid of a snail in the kitchen? Who is suffering from deforestation? What do non religious people think about euthanasia? The earliest civilization in the world? Are there any good reasons to stop bullying?