What are four realms of the earth
Answers
Answer:
Explanation:
Atmosphere
The Earth’s atmosphere is the gaseous layer that envelopes the world. This layer mostly contains a mixture of mostly nitrogen (78%), Oxygen (21%), and argon (0.9%). In addition, trace gases (carbon dioxide, nitrous oxides, methane, and ozone) account for another tenth of a percent. Water vapor, dust particles, pollutants, and pollen also can be found in mixed into the atmosphere. It is the air or the layer of gases that surrounds us. The main constituent of the atmosphere is nitrogen (78%), which is followed by oxygen (21%) and gases such as carbon dioxide, xenon and argon.
Hydrosphere
All of the water on Earth is known collectively as the Earth’s hydrosphere. Water is found in all three states on Earth. As water vapor in the atmosphere, as liquid in such as in streams, rivers, lakes, ponds, and oceans, and as ice and snow. It is the mass of water found on the Earth that includes oceans, rivers, lakes, estuaries, etc. It also includes ice caps of the polar regions, underground water and water vapour in the air.
Lithosphere
The lithosphere contains the elements of the Earth crust and part of the upper mantle. This is the hard and rigid outer layer of the Earth. The term is taken from the Greek word lithos meaning “rocky”. This part of the Earth includes soil.It is the hard, rocky outermost shell of the Earth made up of rocks and soil. Almost three-fourths of the total area of the Earth is covered by water and the remaining one-fourth is covered by land.
Biosphere
The biosphere covers all living organisms on Earth. There is an estimated 20 million to 100 millions different species in the world organized into 100 phyla that make up the five kingdoms of life forms. These organisms can be found in almost all parts of the geosphere. There are organisms in the air, soil, and water on Earth. The zone where land, water and air come in contact with each other to support life and where living organisms inhabit is called the biosphere.
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