Which of the following explains why wind exists?
A. Air moves from areas of high pressure to
areas of low pressure.
B. Ions in the air repel and push each other
across the planet.
C. Air moves through the atmosphere due to
Earth's magnetic field.
D. The moon's gravity pulls air across Earth like
ocean tides.

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.