These changes can signal a natural disaster.

Meaning: This sentence explains that the changes observed by satellites can be indicators or warnings of an impending natural disaster.

Choice of Words: These refers to the changes mentioned in the previous sentence. Changes are alterations or differences in something. Can indicates possibility or ability. Signal means to indicate or communicate something. Natural disaster refers to a major event caused by natural forces, such as earthquakes, floods, or hurricanes.

Alternative Expressions

Related Expressions

• We can evacuate before the disaster strikes.
• We can learn a lot from these tiny creatures.
• Firefighter helps people in need during a disaster.
• Satellites aid disaster relief.
• The company donated money to the disaster relief fund.
• Satellites aid communication during disaster.
• Cross the street at a crosswalk, wait for the signal to turn green.
• Clouds signal weather change.
• The signal turned green.
• Conductor blew whistle to signal.