Question

The unit explains tsunamis and monitoring systems. If a seismic network reports an underwater earthquake and the water-level network indicates water heights rising toward 40 feet nearshore, what is the monitoring center’s most appropriate action?(2 points)

Apply clay to the ocean surface to sink potential tsunami waves before they reach land

Deploy surface skimmers to the shoreline to prevent water from entering coastal habitats

Increase fertilizer use in coastal marshes to help plants absorb the incoming water

Issue tsunami warnings and an evacuation order for at-risk coastal areas so people move to higher ground

Answer 1

Issue tsunami warnings and an evacuation order for at-risk coastal areas so people move to higher ground.

Reason: 40-foot nearshore waves are life‑threatening; the correct, immediate response is to warn the public and evacuate to higher ground. The other options are impractical and would not stop a tsunami.