https://padlet.com/20cosme_martinezarredondo/rtzkfjrbisp1 Made with charm en-us 2016-12-16 16:26:36 UTC 2016-12-16 16:28:02 UTC hello@padlet.com 20cosme_martinezarredondo https://padlet.com/20cosme_martinezarredondo/rtzkfjrbisp1/wish/144087085 In early China the cultures built dives to keep from the flooding the yellow river was their man source of water now it's to badly polluted to drink out of]]> 2016-12-16 16:27:12 UTC https://padlet.com/20cosme_martinezarredondo/rtzkfjrbisp1/wish/144087085