For our Geo Quiz we asked you about the folksong, "This Land is Your Land."

We were tracking the song's Gulf Stream waters. The global ocean current starts in the Gulf of Mexico, and follows the contour of the eastern coast of North America northward before crossing the Atlantic. Then it splits... one stream (also called the North Atlantic Drift) goes toward northern Europe , the other heads south along West Africa, before re-circulating back.

So you could say the Gulf Stream is a "ribbon of ocean highway" that travels clockwise past the continents that border the Atlantic: North America, Europe, Africa, and South America.

The Gulf Stream moves in response to global wind patters and the rotation of the planet. According to the PBS Nova website: "Uneven heating of Earth creates global winds that form three separate bands in each of the northern and southern hemispheres. Earth receives more solar radiation at the equator than it does at the poles, and this uneven distribution of heat creates pressure differences, which in turn cause the movement of air, or wind. Earth's rotation causes fluids — both air and water — to be deflected as they move across our planet's surface. This is known as the Coriolis effect. The Coriolis effect causes winds to move in an eastward or westward direction in addition to their northward or southward flow.

Ocean currents mirror these wind patterns to some extent. However, continents impede the flow of water. When currents encounter a landmass, they are deflected and ultimately form circular patterns, called gyres, around the perimeter of Earth's oceans and seas. The Coriolis effect acting on these currents causes northern hemisphere gyres to move in a clockwise direction and southern hemisphere gyres to move in a counter clockwise direction."