<?xml version="1.0" encoding="UTF-8"?><oembed><type>video</type><version>1.0</version><html>&lt;iframe src=&quot;https://www.loom.com/embed/c1b050e2a390422ba5bc1cbb4bc9d566&quot; frameborder=&quot;0&quot; width=&quot;1086&quot; height=&quot;814&quot; webkitallowfullscreen mozallowfullscreen allowfullscreen&gt;&lt;/iframe&gt;</html><height>814</height><width>1086</width><provider_name>Loom</provider_name><provider_url>https://www.loom.com</provider_url><thumbnail_height>814</thumbnail_height><thumbnail_width>1086</thumbnail_width><thumbnail_url>https://cdn.loom.com/sessions/thumbnails/c1b050e2a390422ba5bc1cbb4bc9d566-00001.jpg</thumbnail_url><duration>116</duration><title>SAT Jan 2018_S1_Q26</title><description>p:  According to the passage, researchers have identified which mechanism as potentially responsible for the initial attraction between the microscope tip and the salt? 
a:  Gravity ;
 Nano-imprinting ;
 Surface tension ;
 Van der Waals interactions ;</description></oembed>