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TOEFL iBT Practice Test 2 (GREEN ICEBERGS) 2022/2023 with 100% correct answers
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TOEFL iBT Practice Test 2 (GREEN ICEBERGS) 2022/2023 with 100% correct answers
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TOEFL iBT Practice Test 2 (GREENICEBERGS)
According to paragraph 1, all of the following are true of icebergs EXCEPT:
A. They do not have a regular shape.
B. They are formed where glaciers meet the ocean.
C. Most of their mass is above the sea surface.
D. Waves and tides cause them to break off glaciers. correct answerC. Most of their mass is above the
sea surface.
According to paragraph 2, what causes icebergs to sometimes appear dark
or opaque?
A. A heavy cloud cover
B. The presence of gravel or bits of rock
C. The low angle of the Sun above the horizon
D. The presence of large cracks in their surface correct answerB. The presence of gravel or bits of rock
Which of the sentences below best expresses the essential information in the highlighted sentence in
the passage? Incorrect choices change the meaning in important ways or leave out essentiaJ
information.
A. One explanation notes that green icebergs stand out among other icebergs under a great variety of
light conditions, but this is attributed to an optical illusion.
B. One explanation for the color of green icebergs attributes their color to an optical illusion that occurs
when the light from a near-horizon red Sun shines on a blue iceberg.
C. One explanation for green icebergs attributes their color to a great variety of light conditions, but
green icebergs stand out best among other icebergs when illuminated by a near-horizon red Sun.
D. One explanation attributes the color of green icebergs to an optical musion under special light
conditions, but green icebergs appear distinct from other icebergs under a great variety of light
conditions. correct answerD. One explanation attributes the color of green icebergs to an optical musion
, under special light conditions, but green icebergs appear distinct from other icebergs under a great
variety of light conditions.
The word "penetrate" in the passage is closest in meaning to
A. collect
B. pierce
C. melt
D. endure correct answerB. pierce
According to paragraph 4, how is glacial ice formed?
A. By the compaction of snow
B. By the freezing of seawater on the bottom of ice shelves
C. By breaking away from the ice shelf
D. By the capsizing of a two-layer block of shelf ice correct answerA. By the compaction of snow
According to paragraph 4, ice shelf cores helped scientists explain the formation of green icebergs by
showing that
A. the ice at the bottom of green icebergs is bubble-free ice formed from frozen
seawater
B. bubble-free ice is found at the top of the ice shelf
C. glacial ice is lighter and floats better than sea ice
D. the clear sea ice at the bottom of the ice shelf is similar to ice from a green iceberg correct answerD.
the clear sea ice at the bottom of the ice shelf is similar to ice from a green iceberg
Why does the author mention that "The green ice portion was textured by sea water erosion"?
A. To explain why cracks in the iceberg appeared light green instead of dark green
B. To suggest that green ice is more easily eroded by seawater than white ice is
C. To support the idea that the green ice had been the bottom layer before capsizing
D. To explain how the air bubbles had been removed from the green ice correct answerC. To support the
idea that the green ice had been the bottom layer before capsizing
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