Question

a lecturer is preparing a speech on desalination. read the piece of information in each row, then select the section where it fits best.
some environmental groups do not support desalination because they claim it has a heavy carbon footprint.
our concern is centered around how desalination will harm marine life, said marine life activist grace chong.
desalination is used to create water that is suitable for irrigation or human consumption.
desalination converts salt water into freshwater by removing dissolved salts, excessive minerals, and other impurities.

Explanation:

• "Some environmental groups do not support desalination because they claim it has a heavy carbon footprint." and "Our concern is centered around how desalination will harm marine life, said marine life activist Grace Chong." are about opposition to desalination, so they fit in the "Opposition" section.
• "Desalination is used to create water that is suitable for irrigation or human consumption." is about the purpose of desalination, so it fits in the "Purposes" section.
• "Desalination converts salt water into freshwater by removing dissolved salts, excessive minerals, and other impurities." is about the method of desalination, so it fits in the "Method" section.

Answer:

• Some environmental groups do not support desalination because they claim it has a heavy carbon footprint: Opposition
• Our concern is centered around how desalination will harm marine life, said marine life activist Grace Chong: Opposition
• Desalination is used to create water that is suitable for irrigation or human consumption: Purposes
• Desalination converts salt water into freshwater by removing dissolved salts, excessive minerals, and other impurities: Method