You are going to read about the forging of Drake Passage, named after Sir Francis Drake, the English sea captain who circumnavigated the globe in the 16th Century.
Some sentences are not complete. You are given all the necessary words but they are in the wrong order. Once you have re-ordered the end of the sentence you must type the whole sentence in the space provided. Watch your speling, the punctuation and capital letters!
EX:
"The gateway between the Atlantic and Pacific at the bottom of the globe opened up 41 million years ago...... to/ study / old/ teeth/ according / a / of / fish."
You should type:
"The gateway between the Atlantic and Pacific at the bottom of the globe opened up 41 million years ago, according to a study of old fish teeth."
Now you try:
The research in Science pushes back the date of the forging of Drake Passage to .......once / as / ago / thought / twice / long / as.
US geologists believe it kick-started the ocean current that swirls around Antarctica ..... bring/ dramatic / about / effect / helping / to / a / cooling .
Ellen Eckels Martin of the University of Florida said : "We now have a date for the opening of the Drake Passage that looks like it's ... have / the / /early / to / that / contributed / cooling / enough / may / it."
The treacherous stretch of water between the southern tip of South America at Cape Horn and the South Shetland Islands of Antarctica formed when the "arm" ..... America / connected /away /that / and / Antarctica / fell / once / South.
The world was a very different place then. Levels of carbon dioxide were three to four times today's levels and it was .... alligators /warm / Arctic / that / themselves / in / the / so / high / sunned.
But some 30 million years ago, there was .... from / in / to / climate / a / shift / "icehouse" / dramatic / "greenhouse".
Scientists have long .... happened / this / speculated / how / about.
They suspect the .... Drake Passage/ role / opening / played /of / the / a /key .
But until now, the date has been fuzzy, .... ranging /49 million /to / with / from / ago / 15 million/ estimates / years.
The University of Florida team came up with a reliable date by studying fish teeth recovered .... 1,000 / from / Atlantic Ocean / rocks / more / bottom / feet / beneath / the / of / the / lying / than.
The chemical signatures for the Atlantic and the Pacific are different, allowing the scientists .... when / water / to / seeping / the Pacific Ocean / the Atlantic Ocean / determine / from / began / into.
The research shows that the rift in the plates of the Earth that .... happened / open / caused / 41 million / ago / the / to / up / about / years /gap.
This conclusion fits .... build-up / sheets / Antarctica / in / of / with / years / million / the / a / ice / on / few / later.
Scientists believe the formation of the ocean current that circulates around Antarctica played a key role in the cooling .... streams / from / deflects / as / it / the / of / coming / equator / warm water.
Now click here for the full article and make notes of all the vocabulary or idioms you didn't know.
