What are the four realms of the Earth? Explain them
What are the four realms of the Earth? Explain them
The four realms of the earth :
- Lithosphere,
- Hydrosphere,
- Biosphere
- Atmosphere.
Lithosphere: The realm of land is called the lithosphere. The word lithosphere comes from a Greek word Lithos which means rock. It is the outer solid layer of earth which is composed of rocks and soils.
Hydrosphere: The realm of water is called the hydrosphere. This layer covers 71 per cent of the earth surface.
Biosphere: The narrow zone where land, water and air meet is called the biosphere. It is the fourth realm of the earth, and it supports life.
Atmosphere: The atmosphere is the envelope of gases surrounding Earth that extends up to approximately 10,000 km above Earth’s surface. The bottom four layers of the atmosphere are troposphere, stratosphere, mesosphere, and ionosphere.
The four realms of the earth :
- Lithosphere,
- Hydrosphere,
- Biosphere
- Atmosphere.
Lithosphere: The realm of land is called the lithosphere. The word lithosphere comes from a Greek word Lithos which means rock. It is the outer solid layer of earth which is composed of rocks and soils.
Hydrosphere: The realm of water is called the hydrosphere. This layer covers 71 per cent of the earth surface.
Biosphere: The narrow zone where land, water and air meet is called the biosphere. It is the fourth realm of the earth, and it supports life.
Atmosphere: The atmosphere is the envelope of gases surrounding Earth that extends up to approximately 10,000 km above Earth’s surface. The bottom four layers of the atmosphere are troposphere, stratosphere, mesosphere, and ionosphere.
