Image licensed under Public Domain
Although it seems to be everywhere, sand is actually running out. This might not seem like a problem, but you probably don’t realize how important sand really is. We use it to make concrete, silicone, and even artificial islands. Unfortunately, environmental factors are making it harder and harder to get, like many other natural resources today. Listen to learn the untold story of sand.
Story Length: 7:51
Socrative users can import these questions using the following code: SOC-1234