1.0phone english bloghttps://phoneenglish.es/blogmeganhttps://phoneenglish.es/blog/author/megan/rich600338<blockquote class="wp-embedded-content" data-secret="4w6VANME9M"><a href="https://phoneenglish.es/blog/2020/06/scientists-discover-the-worlds-cleanest-air/">Scientists Discover the World’s Cleanest Air</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://phoneenglish.es/blog/2020/06/scientists-discover-the-worlds-cleanest-air/embed/#?secret=4w6VANME9M" width="600" height="338" title="“Scientists Discover the World’s Cleanest Air” — phone english blog" data-secret="4w6VANME9M" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); </script> B1 – Intermediate There’s nothing quite like opening the door and breathing fresh, clean air but how clean is the air you’re breathing right now? Due to increasing concentration of poisonous gases in the environment, the air is getting more and more toxic day by day. These gases are also the cause of many respiratory […]