25/2/2016 ENGLISH PAGE Mixed Prepositions 6 englishpage.com Home > Prepositions and Phrasal Verbs > Mixed Prepositions 6 Mixed Prepositions 6 MultipleChoice f t g+ p Complete the text below by choosing the correct prepositions, then press "Check" to check your answers. Long before any recorded human history in Yellowstone National Park, a massive volcanic eruption spewed an immense volume western U.S., much ash that covered all of the the Midwest, northern Mexico and some areas of the eastern Pacific Coast. The eruption dwarfed that of Mt. St. Helens left a huge caldera. Yellowstone typically erupts every 600,000 1980 and 900,000 years with the last event occurring 640,000 years ago. Its eruptions are among the largest known to have ever occurred change Earth, producing drastic climate the aftermath. The park was named the yellow rocks seen the Grand Canyon of the Yellowstone a deep gash in the Yellowstone Plateau that was formed floods during previous ice ages and river erosion from the Yellowstone River. Source: http://en.wikipedia.org/wiki/Yellowstone_National_Park Check Copyright © 2016 Englishpage.com, All Rights Reserved Contact us | Privacy Policy | Advertise with us http://www.englishpage.com/prepositions/mixed_prepositions_6.htm 1/2