GRE Reading Comprehension
Home > GRE Test > GRE Reading Comprehension Questions
Next steps
- Use your browser's back button to return to your test results.
- Do more GRE Reading Comprehension Questions.
Source: OG2
Arctic sea ice comes in two varieties. Seasonal ice forms in winter and then melts in summer, while perennial ice persists year-round. To the untrained eye, all sea ice looks similar, but by licking it, one can estimate how long a particular piece has been floating around. When ice begins to form in seawater, it forces out salt, which has no place in the crystal structure. As the ice gets thicker, the rejected salt collects in tiny pockets of brine too highly concentrated to freeze. A piece of first-year ice will taste salty. Eventually, if the ice survives, these pockets of brine drain out through fine, veinlike channels, and the ice becomes fresher; multiyear ice can even be melted and drunk.
It can be inferred from the passage that which of the following activities is NO an example of a population responding to high-frequency environmental processes?
- A Developing watertight jars in which to collect and store water during the rainy season
- B Building multistory dwellings in low-lying areas to avoid the flash flooding that occurs each summer
- C Moving a village because groundwater levels have changed over the last generation
- D Trading with other groups for furs from which to make winter clothes
- E Moving one's herds of grazing animals each year between summer and winter pastures