Major Landforms of the Earth
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Questions and Answers

What percentage of the Earth's surface is covered by water?

  • 50%
  • 60%
  • 71% (correct)
  • 29%

Mountains are formed solely from volcanic activity.

False (B)

Name the four spheres that interact to shape the Earth.

Lithosphere, Hydrosphere, Atmosphere, Biosphere

The ________ is the life zone on our planet that distinguishes it from others in the solar system.

<p>Biosphere</p> Signup and view all the answers

Match the following types of mountains with their formation characteristics:

<p>Fold Mountains = Formed by the collision of tectonic plates Volcanic Mountains = Formed by volcanic activity Block Mountains = Formed by tectonic forces causing blocks of crust to fracture and move Mountain Ranges = Chains of mountains connected through similar geological processes</p> Signup and view all the answers

Which of the following is NOT a type of mountain?

<p>Plateau Mountains (C)</p> Signup and view all the answers

The atmosphere is composed mainly of nitrogen, oxygen, and water vapor.

<p>True (A)</p> Signup and view all the answers

What process is called when one tectonic plate is pushed below another?

<p>Subduction</p> Signup and view all the answers

What type of mountains are formed as a result of compression in the earth's crust?

<p>Fold mountains (A)</p> Signup and view all the answers

Old fold mountains are typically higher in altitude compared to young fold mountains.

<p>False (B)</p> Signup and view all the answers

Name one example of a young fold mountain.

<p>Himalayas</p> Signup and view all the answers

The steep edges and almost level surfaces are characteristic of __________ mountains.

<p>block</p> Signup and view all the answers

Which type of plateau is formed by the movement of the earth’s crustal plates?

<p>Tectonic Plateau (D)</p> Signup and view all the answers

Match the type of mountain with its correct example:

<p>Himalayas = Young fold mountains Urals = Old fold mountains Kilimanjaro = Volcanic mountains Vosges = Block mountains</p> Signup and view all the answers

Old Fold Mountains are characterized by steep slopes and sharp peaks.

<p>False (B)</p> Signup and view all the answers

Which of the following is a process that leads to the formation of volcanic mountains?

<p>Accumulation of lava and ash (B)</p> Signup and view all the answers

What is a plateau sometimes referred to as?

<p>tableland</p> Signup and view all the answers

The vent is the funnel-shaped depression at the top of a volcanic mountain.

<p>False (B)</p> Signup and view all the answers

The Colorado Plateau is an example of a ________ plateau.

<p>dissected</p> Signup and view all the answers

What geological phenomenon leads to the formation of block mountains?

<p>Faulting</p> Signup and view all the answers

Match the plateau types with their descriptions:

<p>Tectonic Plateau = Formed by the movement of crustal plates Volcanic Plateau = Formed by successive layers of lava Dissected Plateau = Marked by canyons and gorges due to erosion Piedmont Plateau = Lies between a mountain and a plain or ocean</p> Signup and view all the answers

Which of the following is NOT a type of plateau?

<p>Sedimentary Plateau (A)</p> Signup and view all the answers

Plains are typically more than 200 meters above sea level.

<p>False (B)</p> Signup and view all the answers

Give one example of an intermontane plateau.

<p>Tibetan Plateau</p> Signup and view all the answers

What are the fertile areas formed by alluvium deposited by rivers called?

<p>River plains (A)</p> Signup and view all the answers

Erosional plains are formed by the deposition of sediments from mountains.

<p>False (B)</p> Signup and view all the answers

Name one type of plain based on its formation.

<p>Structural Plains</p> Signup and view all the answers

COASTAL PLAINS are found along the edges of continents adjacent to __________.

<p>seas</p> Signup and view all the answers

Match the following types of plains to their descriptions:

<p>Structural Plains = Formed by uplift of seafloor or continental shelf Erosional Plains = Result from erosion of mountains and hills Depositional Plains = Formed by sediments from natural agents Coastal Plains = Located next to seas or oceans</p> Signup and view all the answers

Which of the following is a characteristic of river valleys?

<p>They are usually V-shaped (A)</p> Signup and view all the answers

Basins are areas in the Earth's crust that are surrounded by mountains and contain rivers that flow to the sea.

<p>False (B)</p> Signup and view all the answers

What is a rift valley?

<p>A valley formed when the land between two faults sinks.</p> Signup and view all the answers

Which of the following is NOT a benefit provided by rivers?

<p>Forms mountains (C)</p> Signup and view all the answers

Water pollution only affects oceans and not rivers or lakes.

<p>False (B)</p> Signup and view all the answers

What are two common causes of water pollution?

<p>Oil spills and untreated liquid waste.</p> Signup and view all the answers

Liquid waste from ________ power plants is a significant cause of water pollution.

<p>thermal</p> Signup and view all the answers

Match the following causes of water pollution with their descriptions:

<p>Liquid waste from thermal power plants = Discharged waste from energy generation processes. Surface run-off = Rainwater carrying pollutants into water bodies. Untreated liquid waste = Industrial or sewage waste that hasn't been treated. Oil spills = Accidental release of oil into water bodies.</p> Signup and view all the answers

Which landform is described as a body of land surrounded by water?

<p>Island (D)</p> Signup and view all the answers

Old Fold Mountains have sharp peaks and steep slopes.

<p>False (B)</p> Signup and view all the answers

What process accounts for the formation of Block Mountains?

<p>Faulting</p> Signup and view all the answers

A __________ is a narrow strip of land connecting two larger land masses.

<p>isthmus</p> Signup and view all the answers

Match the following types of landforms with their characteristics:

<p>Fold Mountains = Formed by compression of Earth's crust Block Mountains = Formed by faulting and have steep edges Plateaus = Known for mineral wealth and fertile soil Plains = Good for agriculture due to flat surfaces</p> Signup and view all the answers

What is one economic advantage of plateaus?

<p>Known for mineral wealth (A)</p> Signup and view all the answers

Hydro-electricity can only be generated in flat terrains.

<p>False (B)</p> Signup and view all the answers

Explain how the Grand Canyon was formed.

<p>Erosion by weathering agents like wind, heat, and water.</p> Signup and view all the answers

Flashcards

Mountains

Large areas of Earth's crust that rise high above their surroundings, often in ranges.

Tectonic Plates

Large sections of Earth's crust that move and collide.

Fold Mountains

Mountains formed when tectonic plates collide and fold.

Volcanic Mountains

Mountains formed by volcanic eruptions.

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Block Mountains

Mountains formed by large blocks of the Earth's crust being pushed up or down.

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Subduction

The process where one tectonic plate slides beneath another.

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Geosphere

The solid, rocky part of the Earth.

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Hydrosphere

All the water on Earth.

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Old Fold Mountains

Fold mountains formed over 250 million years ago, with gentle slopes and low altitude.

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Young Fold Mountains

Fold mountains formed recently (25 million years ago), with rugged, high altitudes.

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Vent

The opening through which lava and other materials from inside the earth come out during a volcanic eruption.

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Crater

The funnel-shaped depression at the top of a volcano's vent.

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Endogenous Processes

Geological processes that originate from within the Earth.

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River Plains

Flat land areas formed by alluvium (sediment) from rivers and their tributaries.

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Coastal Plains

Plains found along the edges of continents near seas.

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Structural Plains

Plains formed by the uplift of seafloor or continental shelf.

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Erosional Plains

Plains created by the erosion of mountains, hills and plateaus.

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Depositional Plains

Plains formed by sediments from mountains carried by water, wind or ice.

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Basin

A low area of land surrounded by higher land.

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Valley

Low-lying land between hills or mountains.

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Rift Valley

A valley formed when land sinks between faults.

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Why are rivers important?

Rivers provide vital resources like fertile soil for agriculture, drinking water for humans and animals, transportation routes, energy sources, and opportunities for recreation.

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Water pollution

Harmful substances entering water bodies, affecting the health of ecosystems and human life.

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Causes of water pollution

Activities that introduce harmful substances into water sources, such as industrial waste, agricultural runoff, and sewage.

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Liquid waste from thermal power plants

Wastewater from power plants, often containing heat and chemicals, released into rivers and oceans, harming aquatic life and ecosystems.

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Surface runoff

Water flowing over the land, carrying pollutants like fertilizers and pesticides from farms and urban areas into rivers and lakes.

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Fold Mountains Formation

Fold mountains are created by the compression of the Earth's crust.

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Characteristics of Old Fold Mountains

Old fold mountains typically have gentle slopes and rounded peaks.

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Block Mountains Formation

Block mountains are formed by faulting, where the Earth's crust breaks.

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Plateau Definition

A plateau is a flat, uplifted area of land, usually higher than surrounding land.

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Volcanic Plateau

A volcanic plateau is formed by solidified layers of lava.

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Dissected Plateau

Dissected plateaus have canyons, gorges, and valleys due to erosion.

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Intermontane Plateau

Intermontane plateaus are surrounded by mountains.

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Island

A piece of land completely surrounded by water.

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Peninsula

A piece of land almost entirely surrounded by water, connected to a larger landmass by a narrow strip of land called an isthmus.

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Isthmus

A narrow strip of land connecting two larger landmasses, often with water on either side.

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Plateaus

Large, flat areas of land elevated above the surrounding terrain.

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Grand Canyon

Example of a dissected plateau, carved by the Colorado River.

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Study Notes

Major Landforms of the Earth

  • Earth's landforms and water bodies significantly impact societies and lifestyles.
  • Landforms consist of mountains, valleys, plains, plateaus, and basins.
  • Water bodies include seas, gulfs, bays, straits, lakes, and rivers.
  • The lithosphere/geosphere is the solid surface of the Earth.
  • The hydrosphere encompasses all water on Earth.
  • The atmosphere is a gaseous layer enveloping Earth, primarily nitrogen, oxygen, carbon dioxide, and water vapor.
  • The biosphere contains all life on Earth.

Types of Mountains

  • Mountains are elevated areas of Earth's crust.
  • Fold mountains form when tectonic plates collide, pushing upwards.
  • Older fold mountains have gentle slopes and low altitudes.
  • Young fold mountains are rugged and lofty, formed more recently.
  • Volcanic mountains are produced from molten lava, ash, and dust.
  • Block mountains originate from the fracturing of rock strata.

Types of Plateaus

  • Plateaus are elevated, flat, and level land areas.
  • Tectonic plateaus result from Earth's crustal movement.
  • Volcanic plateaus are formed by successive lava flows.
  • Dissected plateaus show signs of erosion via canyons, gorges, or valleys.
  • Intermontane plateaus lie between mountain ranges.
  • Piedmont plateaus are located between mountains and plains or oceans.

Types of Plains

  • Plains are vast, nearly level land areas below 200 meters above sea level.
  • Structural plains are formed by the upliftment or seafloor or continental shelf.
  • Erosional plains arise from the gradual erosion of mountains, hills, and plateaus.
  • Depositional plains accumulate sediment from natural agents like ice, wind, and water.
  • Coastal plains border seas or oceans.

Basins

  • Basins are depressed areas surrounded by higher land.
  • Many basins are found near plateau edges.
  • Rivers in basins flow inland and don't reach the sea.
  • Examples include the Tarim, Tsaidam Basins of Asia, and Chad Basin of Africa.

Valleys

  • Valleys are low-lying land areas separating hills or mountains.
  • Valleys are often formed by external forces like rivers, exogenous process.
  • Rift valleys are created where land between faults subsides.
  • River valleys usually have V-shapes.

Islands, Peninsulas, and Isthmuses

  • Islands are land areas completely surrounded by water.
  • Peninsulas project into water, are connected to the mainland.
  • Isthmuses are narrow strips connecting land masses.

Major Water Bodies

  • Water covers 71% of Earth's surface.
  • Oceans are large bodies of water.
  • Five major oceans exist.
  • Gulfs, Bays, Straits, Lakes, and Rivers are smaller water bodies.

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Landforms and Water Bodies PDF

Description

Explore the various landforms and water bodies that shape our planet's surface. This quiz covers mountains, valleys, plains, plateaus, and more, along with their geological formations and impacts on society. Test your knowledge about Earth's lithosphere, hydrosphere, atmosphere, and biosphere.

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