give the literal meaning of four sphere of environment...
Answers
4 Different Spheres of the Earth:
Lets take a look at these four spheres of the earth in bit more detail to understand how they help make up the earth.
1.Hydrosphere (Water)
*The hydrosphere includes all the gaseous, liquid, and solid water of the planet earth.
* The hydrosphere stretches all the way from the Earth’s surface downward numerous miles into the lithosphere and high above the crust into the atmosphere.
2.Biosphere (Living Things)
*All the living things in the planet are categorized under the biosphere.
*In this view, the biosphere includes all of the animals, plants, and microorganisms of earth.
*Humans as well belong to this group.
3.Lithosphere (Land)
*The lithosphere is made up of all the hard and solid land mass on the earth’s surface, the semi-solid rocks (molten materials) underneath the earth crust, and the liquid rocks in the inner core of the earth.
*The surface of the lithosphere is uneven as it is characterized by various landform features.
4.Atmosphere (Air)
*All the air in the atmosphere makes up the atmosphere.
*The atmosphere is a mixture of nitrogen (about 78%), oxygen (about 21%), and other gasses (about 1%) such as carbon dioxide (0.039%), argon (0.93%) and the rest are trace gases (krypton, neon, helium , and xenon).
Answer:
Explanation:
Our planet Earth is a very complex place. Although it looks like one large structure, it is in fact made up of several unique properties, characteristics, and compositions. They all affect the processes of the earth differently.
All the elements and properties in the earth’s system are divided into four major subsystems. The scientific term for these subsystems is biophysical elements. There are four spheres of earth including hydrosphere, biosphere, lithosphere and atmosphere.
Hydrosphere: – The hydrosphere contains all the solid, liquid and gaseous water of the planet. Approximately 97% of the earth’s water is salty and only a small portion (about 3%) is non-salty. The saltwater gets collected along the earth’s surface in deep valleys. This sphere ranges from 10 to 20 kilometers in thickness. It stretches all the way from the earth’s surface down numerous miles into the lithosphere and high above the crust into the atmosphere.
Biosphere: – The biosphere of earth includes all living things on planet Earth like animals, plants and microorganisms. Most of this life exists no deeper than about 10 feet into the ground or approximately 600 feet above it. There are different ecological communities divided in six main biomes which are desert, aquatic, forest, grassland, tundra and chaparral. It is the biggest one of all four spheres of earth.
Lithosphere: – The lithosphere can be defined as the outer boundary layer of solid earth and discontinuity within the mantle. It is a crustal system composed of various layers which are core, mantle and outer crust. It is also known as geosphere. The actual thickness of this sphere varies considerably and can range from roughly 40 kilometer to 280 kilometer.
Atmosphere: – The atmosphere is a complex fluid system of gases and suspended particles. This fluid system forms a gaseous envelope around the earth with no defined boundaries. The total volume of atmosphere is made up of gases like nitrogen, argon, oxygen, carbon dioxide and water vapour etc.