Earth's Landforms and Plate Tectonics

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Questions and Answers

What are the different types of landforms?

  • Continents, countries, states, cities, towns
  • Forests, grasslands, tundras, rainforests, deserts
  • Mountains, valleys, plains, islands, peninsulas (correct)
  • Rivers, lakes, oceans, glaciers, deserts

Landforms can affect human activity, but human activity cannot impact landforms.

False (B)

What is the theory of plate tectonics?

The theory of plate tectonics states that the Earth's outer layer is divided into plates that move slowly, and their interaction shapes the Earth's surface.

What are the forces that shape the Earth's landforms?

<p>All of the above (D)</p> Signup and view all the answers

What are the three layers of the Earth?

<p>The Earth is made up of three layers: the inner core, the outer core, and the mantle.</p> Signup and view all the answers

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Flashcards

What are landforms?

Shapes on Earth's surface, like mountains, valleys, plains, islands, and peninsulas.

What are continents?

Large landmasses on Earth, like North America or Asia.

What is plate tectonics?

The theory that Earth's outer layer is made up of large plates that move slowly over time.

What is lava?

Molten rock that erupts from volcanoes.

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What are earthquakes?

Shaking of the Earth's surface caused by the movement of tectonic plates.

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What is weathering?

The process of breaking down rocks into smaller pieces by forces like wind, water, or ice.

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What is erosion?

The process of moving weathered rock and soil by forces like wind, water, or ice.

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What is alluvial deposition?

The process of sediment being carried by water and deposited in a new location.

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What does plate tectonics explain?

The theory that explains how Earth's landforms are created.

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What are Earth's three layers?

The solid inner core, liquid outer core, and solid crust.

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How do Earth's tectonic plates move?

They move independently of each other, causing changes in Earth's surface.

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What causes tectonic plates to move?

The pressure from the mantle causes the plates to move in various directions and speeds.

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What does the world map with colored plates show?

It's a representation of the Earth's crust showing the major tectonic plates and their boundaries.

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Why are the boundaries between tectonic plates important?

These boundaries are where plates meet and interact, causing major geological events like earthquakes and volcanoes.

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What happens when tectonic plates collide?

They meet each other, leading to the creation of mountains, volcanoes, and earthquakes.

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What happens when tectonic plates separate?

They move apart, creating new crust and often leading to volcanic activity.

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What happens when tectonic plates slide past each other?

They slide past each other, causing earthquakes.

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What is the significance of tectonic plates in shaping Earth's surface?

They are responsible for the creation of landforms and geological events like earthquakes and volcanoes.

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What do geographers study?

Geographers study the forces that shape Earth's landforms, including the movement of tectonic plates.

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Study Notes

Earth's Landforms

  • Landforms are shapes on Earth's surface, like mountains, valleys, plains, islands, and peninsulas.
  • Mountains rise above 2,000 feet (610 meters).
  • Valleys are low areas between mountains or hills.
  • Plains are flat stretches of land.
  • Islands are land surrounded by water.
  • Peninsulas are land surrounded by water on three sides.

Plate Tectonics

  • Earth's crust is made of plates that move, typically several inches a year.
  • Plate movement creates forces that form many landforms.
  • Plates collide, separate, and slide past each other, creating these forces.
  • Earth's structure is divided into a core, mantle, and crust.
  • The crust is the outer layer, and continents are part of this.

Forces Shaping Landforms

  • Plate tectonics explains how forces within Earth shape landforms.
  • Energy deep within the Earth puts pressure on Earth's crust, causing it to shift, ultimately moving the plates.
  • These plate movements can create various landforms based on the direction and speed of this movement.
  • Scientists study how landforms interact with and impact human activity.

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