{"version":"1.0","provider_name":"Learn Libre","provider_url":"https:\/\/learnlibre.com\/es\/","author_name":"Learn Libre","author_url":"https:\/\/learnlibre.com\/es\/author\/sciencematters\/","title":"Water Quality and Treatment - Learn Libre","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"MgjaEpaAYF\"><a href=\"https:\/\/learnlibre.com\/es\/lessons\/water-quality-and-treatment\/\">Calidad y tratamiento del agua<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnlibre.com\/es\/lessons\/water-quality-and-treatment\/embed\/#?secret=MgjaEpaAYF\" width=\"600\" height=\"338\" title=\"&#8220;Water Quality and Treatment&#8221; &#8212; Learn Libre\" data-secret=\"MgjaEpaAYF\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/learnlibre.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/learnlibre.com\/wp-content\/uploads\/2025\/06\/Water-quality-and-treatment-featured-photo.webp","thumbnail_width":2880,"thumbnail_height":1620,"description":"Over 70% of Earth\u2019s surface is covered in water, which leads us to the question that starts off this lesson: if there\u2019s so much water on Earth, why do people talk about needing to conserve it? We\u2019ll dig into how much of Earth\u2019s water we can actually use, and all of the different things we..."}