What does this weather map symbol represent, and what is its meaning?
Moving front: the area between two air masses where is constantly in
motion
Stationary front: the boundary between two air masses where no air is
moving
Cold front: the leading edge of a cold air mass is pushing against a warm
air mass
Warm front: the leading edge of a warm air mass is pushing in to replace a
cold air mass

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