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Practice Reading: Multiple Choice, Multiple Answers ID: #32998 Icebergs
Instructions ›
Read the text and answer the question by selecting all the correct responses. You will need to select more than one response.
Icebergs are massive blocks of ice, irregular in shape; they float with only about 12 percent of their mass above the sea surface. They are formed by glaciers—large rivers of ice that begin inland in the snows of Greenland, Antarctica, and Alaska—and move slowly toward the sea. The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action cause blocks of ice to break off and float out to sea. Icebergs are ordinarily blue to white, although they sometimes appear dark or opaque because they carry gravel and bits of rock. They may change color with changing light conditions and cloud cover, glowing pink or gold in the morning or evening light, but this color change is generally related to the low angle of the Sun above the horizon. However, travelers to Antarctica have repeatedly reported seeing green icebergs in the Weddell Sea and, more commonly, close to the Amery Ice Shelf in East Antarctica.

According to the paragraph, which of the following are true of icebergs:

* Click on the correct answers

Result:

AI explanationShows the answer. Tap to open.
Option 1: "They do not have a regular shape."

Explanation: The text states that icebergs are 'irregular in shape,' which directly supports this option. This aligns with the main idea that icebergs have unique forms, confirming their lack of regularity.

Option 2: "They are formed where glaciers meet the ocean."

Explanation: The text explains that icebergs are formed by glaciers that move toward the sea, and it specifically mentions the melting at the base of the glacier where it meets the ocean. This indicates that the formation of icebergs is indeed linked to the interaction between glaciers and the ocean.

Option 3: "Most of their mass is above the sea surface."

Explanation: The text clearly states that only about 12 percent of an iceberg's mass is above the sea surface, which contradicts the claim that most of their mass is above. This option misrepresents the information provided in the text.

Option 4: "Waves and tides cause them to break off glaciers."

Explanation: The text mentions that waves and tidal action contribute to the breaking off of blocks of ice from glaciers. This supports the option as it accurately reflects the processes described in the text that lead to the formation of icebergs.

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