Word Pairs

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The words
Many [regions / region] in the world have very little rain. It is a daily [challenging / challenge] for people to get water. Scientists have found a new way that could help some [of / off] the driest towns and cities in the world. Capturing water from fog could provide [drink / drinking] water to millions of people. Researchers in Chile have been studying [how / what] fog harvesting could help to collect water. Fog harvesting is a [sample / simple] process. Water from fog is collected on large [mash / mesh] screens that are hung between poles. When [foggy / fog] and clouds pass through the screens, droplets of water stick to the mesh. This water then drips [up / into] pipes below the screens and ends up in storage tanks. It is a cheap and easy way of [collecting / collection] water in dry areas.

The researchers are [from / of] Universidad Mayor, a private university in the capital city Santiago. They have been [testing / tested] fog harvesting in the desert town of Alto Hospicio. The town gets an average of [less / fewer] than 5 mm of rainfall a year. Many people who [lives / live] there get their drinking water delivered by [track / truck] . Researcher Dr Virginia Carter Gamberini said fog harvesting could bring a "[new / news] era" to the town. She said her research "represents a notable shift [on / in] the perception of fog water use - from a rural, rather small-scale solution [to / at] a practical water resource for cities". She added: "Water from the clouds could enhance our cities' [resilience / resilient] to climate change, while improving access to clean [watering / water] ."

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