Wave Identification Exercise
Look at these two images and decide which one of them shows wind and which shows swell waves.
Image A
![photo of waves on surface of water](media/graphics/surface_waves1.jpg)
Image B
![photo of swell waves in ocean](media/graphics/flickr_swellwaves_chrispreen.jpg)
Image A shows wind waves because they have a very short period and height. Image B shows swell waves because they have a longer period and higher height.