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Major Domains of the Earth Video Lecture | NCERT Video Summary: Class 6 to Class 12 (English) - UPSC
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FAQs on Major Domains of the Earth Video Lecture - NCERT Video Summary: Class 6 to Class 12 (English) - UPSC
| 1. What are the major domains of the Earth? |  |
Ans. The major domains of the Earth are the lithosphere, hydrosphere, atmosphere, and biosphere. The lithosphere refers to the solid outer layer of the Earth, which includes the crust and uppermost part of the mantle. The hydrosphere encompasses all forms of water found on the Earth's surface, including oceans, rivers, lakes, and groundwater. The atmosphere is the layer of gases surrounding the Earth and is responsible for weather and climate. The biosphere includes all living organisms and their interactions with the other domains.
| 2. How does the lithosphere contribute to the Earth's major domains? | |
Ans. The lithosphere is a significant contributor to the Earth's major domains. It forms the solid foundation upon which the other domains exist. The lithosphere is where the land masses, such as continents and islands, are located. It plays a crucial role in supporting life as it provides habitats for various organisms. Additionally, the lithosphere interacts with the hydrosphere through landforms like rivers and lakes, and with the atmosphere through processes like weathering and erosion.
| 3. What role does the hydrosphere play in the Earth's major domains? | |
Ans. The hydrosphere plays a vital role in the Earth's major domains. It covers about 71% of the Earth's surface and includes oceans, seas, lakes, rivers, and other bodies of water. The hydrosphere is essential for sustaining life as it provides a habitat for numerous aquatic organisms. It also regulates the Earth's climate through processes like evaporation and precipitation. Additionally, the hydrosphere interacts with the lithosphere through processes like erosion and deposition, shaping the landforms we see today.
| 4. How does the atmosphere contribute to the Earth's major domains? | |
Ans. The atmosphere is a significant contributor to the Earth's major domains. It is composed of various gases, including nitrogen, oxygen, carbon dioxide, and other trace gases. The atmosphere plays a crucial role in regulating the Earth's temperature, weather patterns, and climate. It provides the necessary conditions for life to exist on Earth. The atmosphere interacts with the hydrosphere through processes like evaporation and condensation, which form clouds and influence precipitation. It also interacts with the lithosphere through weathering and erosion, shaping the Earth's surface over time.
| 5. What is the significance of the biosphere in the Earth's major domains? | |
Ans. The biosphere is of utmost significance in the Earth's major domains. It includes all living organisms, from microorganisms to plants and animals. The biosphere is interconnected with the other domains as it relies on resources from the lithosphere, hydrosphere, and atmosphere to thrive. It plays a crucial role in maintaining the Earth's overall balance and stability. The biosphere also influences the biogeochemical cycles, such as the carbon and nitrogen cycles, which are essential for the survival of life on Earth.
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Nov 24, 2024 Last updated |
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