Natural Earth Processes - 4th Grade Science

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Question

Which solution to reduce the impacts of an earthquake would be beneficial to the MOST people?

Answer

All of these solutions would mitigate the effect of an earthquake on residents in areas that are prone to natural disasters. Still, only one would be beneficial to a large population. Creating building codes that require all new construction and existing buildings to be built to a high safety standard will help save lives and reduce damage. These building codes have regulations that companies must follow to ensure they are stable and safe.

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Question

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

Melissa says that the best solution for reducing the impact tsunamis have on a city is to build a ten-foot wall around the city. Maggie thinks they should give all the residents boats so they can row away after the roads are flooded. Natalie says they should create a siren that goes off when there is a chance of a tsunami so people can evacuate. Brian thinks that each resident should build an emergency supply bag to keep in their car.

When comparing the four different solutions, which is the most reasonable and would have the most benefit to the residents?

Answer

Tsunamis are a deadly natural hazard and very unpredictable storms. All of the friends came up with ideas to try and reduce the impact a tsunami would have on a town, but only one is the most reasonable and would benefit the majority of residents. A siren to warn residents a tsunami may be approaching would be an excellent early detection system. If residents hear the siren wherever they may be in town, they can get to higher ground or evacuate before the storm arrives. Many people are caught by surprise and are on low grounds or even at the beach when the tsunamis approach so this would be a real life-saver.

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Question

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

Kaitlyn says that the best solution for reducing the impact tsunamis have on a city is to build a ten-foot wall around the city. Angie thinks they should send out warnings on all of the local television stations when a storm may be approaching. Jeff says they should create a siren that goes off when there is a chance of a tsunami so people can evacuate. Donald thinks that each resident should move to the lowest part of their house and hide.

When comparing the four different solutions, which would be the LEAST helpful to the residents?

Answer

Tsunamis are a deadly natural hazard and very unpredictable storms. All of the friends came up with ideas to try and reduce the impact a tsunami would have on a town, and not all of them would be the best, but Donald's plan would be the least helpful to residents. Donald's idea would be dangerous and put many peoples' lives at risk. A siren to warn residents a tsunami may be approaching would be an excellent early detection system. If residents hear the siren wherever they may be in town, they can get to higher ground or evacuate before the storm arrives. Warnings across the television stations would allow people to get prepared for an incoming wave. Building a ten-foot wall wouldn't do much against a 100-foot wave, but it would not put people at risk like Donald's plan.

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Question

The state of Hawaii wants to invest money in protecting residents and communities from volcanoes. Which solution would be the most beneficial to residents and reduce the impact of a volcanic eruption?

Answer

Volcanoes are a deadly natural hazard and can be unpredictable. If a volcano erupts, having better footage of the lava, smoke, and ash will do nothing at the moment to protect residents or their property. Lava would run right through, and under a fence, so it would not protect anyone from the volcano. Understanding the aftermath of a volcanic eruption is very important, but it does not address the issues with the explosion itself. Improving the monitoring systems would give people more time to evacuate or prepare, find a safe place, and would let scientists know the signs to look for future eruptions.

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Question

The state of Hawaii wants to invest money in protecting residents and communities from volcanoes. Which solution would be the LEAST beneficial to residents and reduce the impact of a volcanic eruption?

Answer

Volcanoes are a deadly natural hazard and can be unpredictable. Improving the monitoring systems would give people more time to evacuate or prepare, find a safe place, and would let scientists know the signs to look for future eruptions. A warning device or siren would give advanced notice to residents so they would be aware of the eruption before or as soon as it happens rather than it being too late. Building further away from volcanoes would be a smart investment for future construction, so there is a reduced chance of damage to the new buildings. Lava would run right through, and under a fence, so it would not protect anyone from the volcano. Building a fence would be the least beneficial investment.

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Question

Which solution to reduce the impacts of an earthquake would be beneficial to the LEAST amount of people?

Answer

All of these solutions would mitigate the effect of an earthquake on residents in areas that are prone to natural disasters. But, they would NOT be beneficial to a large population. Creating building codes that require all new construction and existing buildings to be built to a high safety standard will help save lives and reduce damage. These building codes have regulations that companies must follow to ensure they are stable and safe. The safety features should not just be in new homes or homes that cost over $1 million; this eliminates those who are living in less expensive homes or homes that were built previously. Only evacuating people over 80 years of age also narrows down the group of people receiving help drastically and leaves out a large piece of the population. None of these choices would be the best option to help large groups of people.

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Question

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

Melissa says that the best solution for reducing the impact tsunamis have on a city is to build a ten-foot wall around the city. Maggie thinks they should give all the residents boats so they can row away after the roads are flooded. Natalie says they should create a siren that goes off when there is a chance of a tsunami so people can evacuate. Brian thinks that each resident should build an emergency supply bag to keep in their car.

When comparing the four different solutions, which would most likely be the most expensive?

Answer

Tsunamis are a deadly natural hazard and very unpredictable storms. All of the friends came up with ideas to try and reduce the impact a tsunami would have on a town, but one would most likely be very expensive and impractical for a city. Melissa's idea of building a ten-foot-tall wall around the entire town would be too time-consuming, expensive, and labor-intensive. It would not be a practical solution.

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Question

The state of Florida wants to invest money in protecting residents and communities from hurricanes. Which solution would be the LEAST beneficial to residents and reduce the impact of a hurricane?

Answer

Hurricanes are a deadly natural hazard and can be unpredictable. If a hurricane hits Florida, the storm will move directly past the beach barriers and continue moving inland. The barriers will not stop the wind, rain, or storm surge. This idea would be the LEAST beneficial to the community and would have no reduction in the impact of the storm.

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Question

True or False: There are no ways to reduce the impacts of Earth's processes on communities and the residents.

Answer

The statement in the question is false. There are many ways that we can reduce the impacts of Earth's processes on our residents and communities. Warning systems, research, emergency preparedness kits, and plans, code enforcements for storms on new construction, and evacuation plans are just a few of the methods we currently use.

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Question

Students at Bowers Elementary are looking for inexpensive ways to reduce erosion around their local river. Which student's idea would be the most practical and least expensive?

  • Aaliyah thinks the town should build a dam upriver and control the flow of water.
  • Sean wants to plant trees and vegetation along the riverbank.
  • Wayne thinks that installing concrete barriers along the river.

Answer

Sean's idea to plant new trees and vegetation is not only the least expensive and most practical but a common practice. Tree roots hold the dirt in place and can help the banks of the river from being washed away and sliding down into the current. The other ideas are expensive and not practical.

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Question

A community in the Philippines is worried about the effects of tsunamis and typhoons. How could the town generate ideas to reduce the impacts of the storms?

Answer

Many communities face similar problems with different types of severe natural hazards: hurricanes, volcanoes, and earthquakes. To keep the community safe and help the residents make positive changes, all of the plans to generate ideas would be beneficial. Engineers, weather experts, meteorologists, and community members all have a role to play in preparing for these dangerous storms. By working together to reduce the impacts of the storms, the community can hopefully have a better outcome.

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Question

Humans cannot eliminate natural hazards, but they can take steps to reduce their impacts.

Answer

The statement in the question is correct. There is no way to eliminate hurricanes, tornadoes, or other natural disasters, but there are ways to reduce the impact that they have on communities. Many towns have task forces with different community members on them to generate ideas and plans for reducing the negative effect that these storms can have. In areas that frequently receive these types of storms, there are codes and rules about the way buildings have to be constructed and where they can be located. Simple changes to buildings and towns can make a big difference.

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Question

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

The passage gives useful tips to keep people safe if they are caught in a tsunami. Which idea would help give residents more time to prepare before the storm arrives?

Answer

Giving residents more time to prepare for tsunamis could be a way to reduce the impacts of natural disasters significantly. If people had an early warning system, there would be more time for evacuations, preparation, and getting to higher ground. This is an idea that has been implemented in places that experience these monster waves. There has been an increase in the number of survivors and a decrease in the number of casualties.

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Question

Which answer choices are examples of natural hazards that can harm communities?

Answer

Natural hazards are events that are not human-made and harm communities. The events have to be naturally occurring and not influenced by humans. Earthquakes, floods, tsunamis, and volcanic eruptions are all examples of events that are generated by nature, and there are no influences by humans.

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Question

There is only one way to reduce the impact of an earthquake on a city and its residents.

Answer

The statement is false. There are multiple ways that a city and its residents could be protected and reduce the impact of an earthquake. Building houses that can withstand the trembling, stronger foundations and roofs, early warning systems, emergency supplies prepared, and strict building codes are all ways to reduce the negative impacts of an earthquake.

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Question

A community in Japan is worried about the effects of tsunamis and typhoons. Which idea would NOT reduce the impacts of the storms?

Answer

Many communities face similar problems with different types of severe natural hazards: hurricanes, volcanoes, and earthquakes. To keep the community safe and help the residents make positive changes, new safety ideas and measures need to be taken to strengthen the structures and land. Adding new construction that is closer to the water would NOT help reduce the impact of storms, but could increase damage to the buildings. Floodwaters rise and swell near the shore, so moving houses, further inland would be a better idea.

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Question

Tsunamis are severe oceanic storms that cause extreme devastation. They are a series of waves that can be miles long, up to 100 feet high, and can travel at 400 miles per hour. They are caused by significant and sudden disturbances of the sea’s surface. Volcanic eruptions, landslides, earthquakes can trigger a tsunami. A massive wall of water will wash ashore, and there is very little time or warning for those who live in the communities nearby. The series of waves can last for hours, and massive flooding adds to the problem. If you find yourself in a tsunami, get to high ground, keep calm, do not drive, and follow instructions from local officials.

True or False: Based on the information in the passage above, there are very few negative impacts on humans due to natural events.

Answer

The passage provided illuminates many adverse effects or possible effects on humans due to Earth's natural processes. Massive flooding, series of waves that last for hours, waves traveling at immense speeds, and heights are all examples of natural processes that can devastate communities and the lives of the citizens.

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Question

The Governor of Florida is having a contest for students in the 4th grade to help generate ideas to reduce the impact of natural disasters on the state. Which type of natural disaster should the students focus on to make the most significant impact in Florida?

Answer

The students in Florida should focus on hurricane preparedness plans and ways to strengthen their communities against the intense wind a rain that the storms bring. Florida has a season where hurricanes are likely and more prevalent, and the whole state is at risk. Hurricanes can spawn tornadoes, flooding, intense wind gusts, and massive amounts of rain. Students would make the most significant impact on Florida residents if they generated ideas for hurricanes.

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Question

True or False: Basic emergency preparedness is an essential step to reducing the injury and damage of natural disasters.

Answer

The statement in the question is true. Being prepared for an emergency (including a natural disaster or severe storm) is an essential step to reduce injury and damage. First aid supplies, food, water, home strengthening materials like rope or plywood, as well as flashlights, and many other things can serve benefits to keeping people and buildings safe during an emergency.

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Question

What does the term "natural Earth processes" mean?

Answer

The term "natural Earth processes" refers to the physical processes on Earth that create constant change. These processes—including movement in the tectonic plates in the crust, wind and water erosion, and deposition—shape features on Earth's surface and happen naturally. They also include natural disasters like typhoons, hurricanes, landslides, and tornadoes.

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