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Class 6 Exam  >  Class 6 Tests  >  Footprints Class 6: Book Solutions, Notes & Worksheets  >  Test: The Four Realms of the Earth - Class 6 MCQ

Test: The Four Realms of the Earth - Class 6 MCQ


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20 Questions MCQ Test Footprints Class 6: Book Solutions, Notes & Worksheets - Test: The Four Realms of the Earth

Test: The Four Realms of the Earth for Class 6 2024 is part of Footprints Class 6: Book Solutions, Notes & Worksheets preparation. The Test: The Four Realms of the Earth questions and answers have been prepared according to the Class 6 exam syllabus.The Test: The Four Realms of the Earth MCQs are made for Class 6 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Four Realms of the Earth below.
Solutions of Test: The Four Realms of the Earth questions in English are available as part of our Footprints Class 6: Book Solutions, Notes & Worksheets for Class 6 & Test: The Four Realms of the Earth solutions in Hindi for Footprints Class 6: Book Solutions, Notes & Worksheets course. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free. Attempt Test: The Four Realms of the Earth | 20 questions in 30 minutes | Mock test for Class 6 preparation | Free important questions MCQ to study Footprints Class 6: Book Solutions, Notes & Worksheets for Class 6 Exam | Download free PDF with solutions
Test: The Four Realms of the Earth - Question 1
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What is the outermost layer of the Earth called?

Detailed Solution for Test: The Four Realms of the Earth - Question 1
The outermost layer of the Earth is called the crust. It is the solid, outermost shell of the Earth that lies above the mantle.
Test: The Four Realms of the Earth - Question 2
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Where do living beings on Earth primarily exist in terms of the three realms or domains?

Detailed Solution for Test: The Four Realms of the Earth - Question 2
Living beings on Earth primarily exist in a narrow zone of contact between the lithosphere, hydrosphere, and atmosphere, which is known as the biosphere. The biosphere is where life thrives and interacts with these three realms.
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Test: The Four Realms of the Earth - Question 3
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What is the sphere of solid rock on Earth called?

Detailed Solution for Test: The Four Realms of the Earth - Question 3
The lithosphere is the sphere of solid rock that makes up the entire crust and the uppermost solid part of the mantle on Earth. It encompasses the outermost layer where we live and interact.
Test: The Four Realms of the Earth - Question 4
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Which realm is known as the realm of life on Earth?
Detailed Solution for Test: The Four Realms of the Earth - Question 4
The biosphere is known as the realm of life on Earth. It is the narrow zone of contact between the lithosphere, hydrosphere, and atmosphere where living beings thrive and interact, making Earth a conducive environment for life.
Test: The Four Realms of the Earth - Question 5
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Which process in the water cycle involves water vapor cooling, condensing into tiny water droplets, and forming clouds?
Detailed Solution for Test: The Four Realms of the Earth - Question 5
The process in the water cycle that involves water vapor cooling, condensing into tiny water droplets, and forming clouds is condensation. This important process is responsible for the formation of clouds in the atmosphere, which eventually lead to precipitation in the form of rain, snow, or hail.
Test: The Four Realms of the Earth - Question 6
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Which continent is home to the world's largest tropical rainforest, covering over 5.5 million square kilometers?
Detailed Solution for Test: The Four Realms of the Earth - Question 6
South America is home to the world's largest tropical rainforest, the Amazon rainforest, which covers over 5.5 million square kilometers. This rainforest is not only a vital ecosystem but also a rich biodiversity hotspot, housing numerous plant and animal species found nowhere else on Earth.
Test: The Four Realms of the Earth - Question 7
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What is the primary component of the hydrosphere that covers over 70% of the Earth's surface?
Detailed Solution for Test: The Four Realms of the Earth - Question 7
The primary component of the hydrosphere that covers over 70% of the Earth's surface is water bodies. Water bodies such as oceans, seas, lakes, and rivers play a crucial role in shaping the Earth's landscape and supporting various ecosystems.
Test: The Four Realms of the Earth - Question 8
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What percentage of the hydrosphere is made up of fresh water without salt content?
Detailed Solution for Test: The Four Realms of the Earth - Question 8
Only 2.7% of the hydrosphere consists of fresh water without salt content. This limited percentage of fresh water is crucial for sustaining life on Earth, supporting various ecosystems, and serving as a vital resource for human activities such as drinking water, agriculture, and industry.
Test: The Four Realms of the Earth - Question 9
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What is the term used to describe the cyclical changes that water undergoes within the hydrosphere, involving processes such as evaporation, condensation, and precipitation?
Detailed Solution for Test: The Four Realms of the Earth - Question 9
The term used to describe the cyclical changes that water undergoes within the hydrosphere, involving processes such as evaporation, condensation, and precipitation, is the hydrological cycle. This continuous cycle is essential for redistributing water across the planet, ensuring the availability of fresh water for various purposes and maintaining ecological balance.
Test: The Four Realms of the Earth - Question 10
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In which ocean are most of the world's active and dormant volcanoes located, forming a belt known as the Pacific Ring of Fire?
Detailed Solution for Test: The Four Realms of the Earth - Question 10
The Pacific Ocean is home to a significant number of the world's active and dormant volcanoes, concentrated in a region known as the Pacific Ring of Fire. This area is characterized by high volcanic activity and frequent earthquakes, making it a vital part of the Earth's geological landscape.
Test: The Four Realms of the Earth - Question 11
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Which ocean is recognized as the largest ocean on Earth and covers more than 30% of the Earth's surface?
Detailed Solution for Test: The Four Realms of the Earth - Question 11
The Pacific Ocean is indeed the largest ocean on Earth, covering more than 30% of the Earth's surface. It is known for its vastness and is home to various islands and significant geographical features. One remarkable point about the Pacific Ocean is that it contains the Earth's deepest point, the Challenger Deep in the Mariana Trench, which plunges to a depth of 10,994 meters.
Test: The Four Realms of the Earth - Question 12
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Which ocean is associated with the presence of more than 25,000 islands, making it the ocean with the highest number of islands in the world?
Detailed Solution for Test: The Four Realms of the Earth - Question 12
The Pacific Ocean stands out for hosting a vast number of islands, totaling more than 25,000. These islands are located across the expanse of the Pacific Ocean, contributing to the unique biodiversity and cultural richness of the region.
Test: The Four Realms of the Earth - Question 13
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Where is the Earth's deepest point, the Challenger Deep in the Mariana Trench, located?
Detailed Solution for Test: The Four Realms of the Earth - Question 13
The Challenger Deep, the deepest known point on Earth, is situated in the Pacific Ocean's Mariana Trench. This trench reaches staggering depths, and the Challenger Deep specifically marks the lowest point on the Earth's surface, highlighting the incredible geophysical diversity of the Pacific Ocean.
Test: The Four Realms of the Earth - Question 14
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Which ocean is referred to as the saltiest ocean and is known for natural hazards such as icebergs and hurricanes?
Detailed Solution for Test: The Four Realms of the Earth - Question 14
The Atlantic Ocean is known for being the saltiest ocean and is associated with natural hazards like icebergs and hurricanes. Its unique characteristics and geographical location make it prone to these phenomena.
Test: The Four Realms of the Earth - Question 15
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Which ocean is crucial for travel and trade between Europe and Asia, and is connected to the Persian Gulf, Red Sea, and Bay of Bengal?
Detailed Solution for Test: The Four Realms of the Earth - Question 15
The Indian Ocean plays a significant role in facilitating travel and trade between Europe and Asia. Its strategic location and connections to key water bodies like the Persian Gulf, Red Sea, and Bay of Bengal make it a vital route for commerce and transportation.
Test: The Four Realms of the Earth - Question 16
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Which ocean is the smallest of the world's five oceans and experiences freezing during winters, leading to the formation of large icebergs and floating islands in summers?
Detailed Solution for Test: The Four Realms of the Earth - Question 16
The Arctic Ocean is the smallest among the world's oceans and undergoes freezing during winter months. This freezing phenomenon results in the creation of large icebergs and floating islands when the ice melts in the summer, shaping its unique ecosystem and geography.
Test: The Four Realms of the Earth - Question 17
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Which ocean is located around the South Pole across the Antarctic Circle in the Southern Hemisphere?
Detailed Solution for Test: The Four Realms of the Earth - Question 17
The Southern Ocean surrounds the South Pole and extends across the Antarctic Circle in the Southern Hemisphere. Its distinct location and characteristics make it an essential part of the global ocean system, influencing climate patterns and marine life in the region.
Test: The Four Realms of the Earth - Question 18
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What layer of the atmosphere is primarily responsible for protecting Earth from the Sun's harmful ultraviolet (UV) radiation?
Detailed Solution for Test: The Four Realms of the Earth - Question 18
The Stratosphere is the layer of the atmosphere that contains the ozone layer, which plays a crucial role in absorbing and blocking a significant portion of the Sun's harmful UV radiation. This layer helps in protecting life on Earth by preventing excessive exposure to these harmful rays.
Test: The Four Realms of the Earth - Question 19
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Which sphere involves the intricate balance between living (biotic) and non-living (abiotic) elements to form ecosystems?
Detailed Solution for Test: The Four Realms of the Earth - Question 19
The Biosphere encompasses the interactions between living organisms and their environment, which includes the delicate balance between biotic (living) and abiotic (non-living) components. This balance is essential for the formation and maintenance of diverse ecosystems on Earth.
Test: The Four Realms of the Earth - Question 20
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Which layer of the atmosphere is most crucial for communication purposes and the placement of satellites?
Detailed Solution for Test: The Four Realms of the Earth - Question 20
The Thermosphere/Ionosphere is the layer of the atmosphere that is vital for communication as it reflects radio waves, allowing long-distance communication. Additionally, this layer is important for satellite placement due to its characteristics that facilitate satellite orbits and transmissions.
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