Question

a source of freshwater
1 turning salt water into freshwater may seem like magic. but its not. many countries do it. today, few people do this to meet their water needs. but by 2025, 14 percent of us will lack freshwater. we will have to make more freshwater. so, desalination has a strong future.
2 desalination removes salt from water to make freshwater. people learned how to do this long ago. aristotle wrote about it in 320 bce. sailors turned salt water into drinking water in the 1770s. then methods got better during world war ii. soldiers in the desert needed water. in the 1950s, people found new ways to filter seawater. by the 1990s, many cities were making freshwater from the sea.
3 in the last 10 years, the use of desalination has grown. the largest projects are in saudi arabia, australia, algeria, and israel. in california, a new plant will soon serve the people of san diego. it will make 56 million gallons of freshwater each day!
4 as it is used more, desalination becomes more inexpensive. as
part a
based on the passage, you can infer that in the next 10 years, desalination will
∘ ◯ be used more widely.
∘ ◯ decrease worldwide.
∘ ◯ cost a lot more.
∘ ◯ replace all other water sources.

Explanation:

The passage states that by 2025, 14 percent of people will lack freshwater, so more freshwater needs to be made, and desalination has a strong future. Also, its use has grown in the last 10 years and new plants are being built. This implies desalination will be used more widely. The other options: "decrease worldwide" contradicts the growth trend; "cost a lot more" is wrong as the passage says it becomes more inexpensive with more use; "replace all other water sources" is extreme and not supported.

Answer:

A. be used more widely.