VIDEOS SOBRE LOS RECURSOS NATURALES.

https://www.youtube.com/watch?v=8akRgFSLqhg

https://www.youtube.com/watch?v=OSP8L-d2es8

https://www.youtube.com/watch?v=zim5NZC4I6I

https://www.youtube.com/watch?v=LgjFWpOhauQ

https://www.youtube.com/watch?v=RsFYWd0Byz0