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Our survival depends ____ upon the health of our global ecosystems
А. directly
Б. openly
В. strictly
Г. straightly

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Coral ____ only about 0.2 percent of the Earth’s surface.
А. contains
Б. covers
В. spreads
Г. stretches

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coral reefs support 25 percent of all marine life with more ____ of life in reefs than any in other ocean habitat.
А. compactness
Б. thickness
В. depth
Г. density

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In the very near future, many coral reefs may stop existing. Coral reefs around the world are being impacted at an alarming ___
А. range
Б. rank
В. rate
Г. interest

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Globally, coral reefs experience rising ocean temperatures. Locally, reefs ____ many other threats from tourism to building wastes, further compounding their degradation.
А. face
Б. watch
В. observe
Г. meet

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Coral ____ over 30 billion dollars to the world economy each year.
А. donates
Б. shares
В. contributes
Г. sacrifices

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New strains of antibiotics are emerging from coral reef studies to help ____ diseases.
А. examine
Б. reduce
В. oppose
Г. fight

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Coral reefs help drive our weather and provide ____ protection for human homes and cities, buffering areas from potentially damaging storms and ocean swells.
А. ground
Б. shoreline
В. bank
Г. seaside

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Coral reefs are in ____ and need our help.
А. problem
Б. harm
В. trouble
Г. loss

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Many of these threats can be prevented ____ communication and education, but people continue to harm coral reefs worldwide.
А. within
Б. during
В. from
Г. through

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In 2003 ____ form of the popular Skype icon ... .
А. earlier
Б. the earliest
В. earliest
Г. the earlier

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In 2003 ... form of the popular Skype icon ____ .
А. was launched
Б. has been launched
В. had been launched
Г. is launched

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The icon ____ several overhauls throughout the years. The current Skype icon features the letter “S” in white color with a bright blue background.
А. undergo
Б. undergone
В. undergoing
Г. underwent

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The bubbly Skype logo is based on the Arial Rounded MT Bold typeface. It features the company name on a series of circles which ____ make a “cloud”.
А. collection
Б. collective
В. collectively
Г. collect

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The blue color in the Skype logo represents communication, prosperity and ____ of hope; whereas the white color represents peace and harmony.
А. an emotion
Б. a emotion
В. emotion
Г. the emotion

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A message in a bottle ____ into the sea off Japan by a girl five years ago ... by a US sailor in Hawaii.
А. throwing
Б. threw
В. throw
Г. thrown

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A message in a bottle ... into the sea off Japan by a girl five years ago ____ by a US sailor in Hawaii.
А. had found
Б. has been found
В. had been found
Г. has found

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Saki Arikawa, 17, from Kagoshima, said she ____ almost forgotten about the bottle and couldn’t believe the news
А. have
Б. had
В. was
Г. has

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Jon Moore ____ a beach clean-up on Kauai island. It contained four origami cranes-symbols of peace in Japan - a photo of Ms Arikawa’s class and a note dated 25 March 2006.
А. while
Б. along
В. since
Г. during

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News of the bottle’s recovery ____ her with more than a dozen of her old classmates.
А. have reconnected
Б. had reconnected
В. has reconnected
Г. reconnect