Pls help with this the pictures on top

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money

Imagine you are driving down the highway and reading a sign that states save the planet don't litter which technique of policy enactment is being used

As you drive in to school, you hear a random radio-show caller arguing that sun exposure really has not been shown to cause skin cancer and that some research suggests that skin cancer is completely genetic and not related to sun exposure at all. at the time, you think that this is a silly argument and that the caller does not know what she is talking about. however, two months later, you are outside without wearing sunscreen, and you find yourself remembering that you had read something about how the sun actually does not cause skin cancer. this process is evidence that has influenced your attitude