Question

a source of freshwater
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!
based on information in the passage, choose two positive
effects of desalination projects.
the city of san diego will send water to
countries around the globe.
cities can provide freshwater to people in
need.
ocean life will become healthier.
salt water will be easy to conserve.

Explanation:

1. Analyze the first option: The passage says a new plant in California will serve San Diego, not that San Diego will send water globally. So this is incorrect.
2. Analyze the second option: The passage states that desalination helps make freshwater, and with the freshwater shortage (14% will lack by 2025), cities can use desalination to provide freshwater to people in need. This is a positive effect.
3. Analyze the third option: The passage doesn't mention anything about ocean life becoming healthier due to desalination. So this is incorrect.
4. Analyze the fourth option: The passage is about desalination making freshwater from saltwater, not conserving salt water. So this is incorrect.

Answer:

B. Cities can provide freshwater to people in need.