Which type of information can scientists collect using a seismograph?(1 point)
Responses
A temperatures of molten rock inside Earth
B the amount of debris produced by a volcano
C pollution levels in the air after a volcanic eruption
D measurements of vibrations occurring inside Earth
D measurements of vibrations occurring inside Earth
A mask that covers the nose and the mouth can help prevent the inhalation of hazardous materials.
National Volcano Early Warning System (NVEWS)
More advanced warning time allows officials to prepare for human evacuations.
The correct answer is D: measurements of vibrations occurring inside Earth.
Scientists use a seismograph to collect information about vibrations or seismic waves occurring inside the Earth. A seismograph is a device that records the movement of the ground during a seismic event, such as an earthquake or volcanic eruption. It consists of a base that remains stationary during vibrations, a mass that moves with the ground, and a recording device that measures the motion.
When seismic waves pass through the Earth's layers, they cause the ground to shake. The seismograph detects these vibrations and converts them into a graphical representation called a seismogram. By studying the seismogram, scientists can analyze the frequency, magnitude, and duration of the vibrations.
This information helps scientists understand the characteristics and behavior of earthquakes, study the internal structure of the Earth, and identify potential seismic hazards in specific regions. Seismographs play a crucial role in monitoring and studying earthquakes, helping scientists make predictions and improve our overall understanding of Earth's dynamic processes.
D measurements of vibrations occurring inside Earth
Which statement best supports the claim that personal protective equipment can minimize human exposure to harmful toxins after a volcanic eruption or earthquake?(1 point)
Responses
First responders have been trained to handle natural hazards.
First responders have been trained to handle natural hazards.
A personal emergency kit should include essential items and be light enough to be carried easily.
A personal emergency kit should include essential items and be light enough to be carried easily.
Special equipment is often used to detect hazards.
Special equipment is often used to detect hazards.
A mask that covers the nose and the mouth can help prevent the inhalation of hazardous materials.
A mask that covers the nose and the mouth can help prevent the inhalation of hazardous materials.
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Which step can ordinary people take to minimize the effects of earthquakes and volcanoes and prevent the loss of human life?(1 point)
Responses
They can keep their eyes and mouth uncovered and open.
They can keep their eyes and mouth uncovered and open.
They can learn how to use the types of equipment scientists use to predict a natural hazard.
They can learn how to use the types of equipment scientists use to predict a natural hazard.
They can follow all advice and directions of first responders.
They can follow all advice and directions of first responders.
They can create an emergency plan within the first few hours after a natural hazard has occurred.
They can create an emergency plan within the first few hours after a natural hazard has occurred.
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What technology did the U.S. Geological Survey (USGS) develop to help monitor volcanic activity at the five monitoring stations in the continental U.S., Alaska, Hawai'i, and the Mariana Islands?(1 point)
Responses
Volcano Notification Service (VNS)
Volcano Notification Service (VNS)
Federal Emergency Management Agency (FEMA)
Federal Emergency Management Agency (FEMA)
National Seismology Center
National Seismology Center
National Volcano Early Warning System (NVEWS)
What is one major outcome of the improved monitoring of volcanoes around the world?(1 point)
Responses
More tourists are interested in visiting places known as hot spots.
More tourists are interested in visiting places known as hot spots.
Explosive eruptions can be prevented.
Explosive eruptions can be prevented.
More advanced warning time allows officials to prepare for human evacuations.
More advanced warning time allows officials to prepare for human evacuations.
Less seismic activity on Earth is being detected.