<br /> <p>Mount Sinabung on Sumatra, Indonesia, spewed smoke on December 27, in what local disaster agency chief Nata Nail described as the volcano’s "the biggest eruption this year.”</p><p>More than a thousand people were forced to evacuate</a> due to the smoke and ash, a spokesman for Indonesia’s disaster mitigation agency said. Credit: YouTube/Sherilyn Sia via Storyful, teachersherilyn.com</p><br />