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प्रश्न
Explain the characteristics of the various spheres of the Earth.
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उत्तर
Earth is the most suitable planet to support life. It has three major components that we call the realms of the Earth lithosphere, hydrosphere, and atmosphere.
- Lithosphere: The word lithosphere is derived from the Greek word Lithos, which means rocky. The Lithosphere is the land on which we live.
- Hydrosphere: The word Hydro means water in Greek. The hydrosphere consists of water bodies such as oceans, seas, rivers, lakes, ice caps on mountains, and water vapour in the atmosphere.
- Atmosphere: The word Atmo means the air in Greek. The atmosphere is the envelope of air that surrounds the Earth. Different types of gases make up the atmosphere. The major gases are Nitrogen (78%) and Oxygen (21%).
- Biosphere: The narrow belt of interaction among the lithosphere, the hydrosphere, and the atmosphere, where life exists is known as Biosphere. Bio means life in Greek. It consists of distinct zones.
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संबंधित प्रश्न
Answer the following question briefly:
Why is the Earth called the ‘blue planet’?
Choose the correct option to complete the sentence given below:
Which ocean is ‘S’ shaped?
Fill in the Blank:
The world’s longest river the Nile flows through ____________
Fill in the Blank:
The Pacific Ocean is ____________ in shape.
Fill in the Blank:
The Coastline of Atlantic Ocean is highly ____________
Match the items in column A correctly with those given in column B.
| Column A | Column B | ||
| 1. | Asia | a. | Amazon River |
| 2. | Europe | b. | Mariana Trench |
| 3. | South America | c. | Arctic Circle |
| 4. | Lithosphere | d. | Tropic of Cancer |
| 5. | Pacific | e. | Solid portion of the earth |
Very Short Answer Type Question:
What percent of the earth is covered with water?
Very Short Answer Type Question:
What percent of the earth is covered with land?
Very Short Answer Type Question:
Why is the ocean water not fit for human use?
Very Short Answer Type Question:
Mention two reasons for the fast removal of soil from stops.
