Question

what is the main reason that desalination (removing salt from saltwater) is not used to make clean, fresh water in all geographic areas? desalination causes too much air pollution. desalination costs too much to use everywhere. desalination technology is not a reality.

Explanation:

Desalination is a process that removes salt from seawater to produce fresh water. However, it is not widely used everywhere. Let's analyze each option:

• Desalination does not cause excessive air pollution compared to other industrial processes.
• Desalination technology is a reality and is used in some areas.
• The main reason is that desalination is expensive. It requires a large amount of energy and infrastructure, making it cost - prohibitive for widespread use in all geographic areas.

Answer:

Desalination costs too much to use everywhere.