In this section you have few short passages. After each passage, you will find some items based on the passage. First, read a passage and answer the items based on it. You are required to select your answers based on the contents of the passage and opinion of the author only.
Passage:
For many years, ship captains navigating the waters of Antarctica have been intrigued by sightings of emerald icebergs. Scientists have now explained their mystery There icebergs are turned upside down. Icebergs are blocks of ice that have broken off huge slabs of frozen snow called ice shelves. Their green appearance results from sea water that has frozen at the bottom over hundreds of years. The frozen sea water has dissolved organic matter which gives it a yellow tone and the fresh water ‘ice shelf’ above has a blue tinge. When the iceberg turns upside down, it appears green through the visual mix of yellow with the blue from below.
What are icebergs ?
- AHuge chunks of ice floating on water
- BFrozen sea water
- CGreen ice
- DGreen yellow water below and blue above
Explanation
The passage says icebergs are 'blocks of ice that have broken off huge slabs of frozen snow called ice shelves' - i.e., huge chunks of ice. 'Frozen sea water' is what gives the green colour, not what an iceberg is; 'green ice' confuses the colour with the thing; option D mixes up the colour mechanism. Hence option A is correct.