JYOTHI

This is Jyothi.I am from kurnool, Andhra Pradesh.I am persuing my B-Tech in Presidency University, Bangalore. I Completed my pre-university in Narayana junior college, Kurnool.I love to watch thriller movies. I like to spend my time with my friends. Philosophy of my life is “Life isn’t about finding your self. life is about creating yourself”….

Sahithi.M

This is Sahithi. I’m from Ongole, Andhra Pradesh. I’m pursuing my b-tech in Presidency University, Bangalore. I completed my intermediate in Abhyaas junior college, Guntur.My hobbies are watching movies and playing badminton. My dream is to travel all around the world.And my way of life is “A negative mind will never give a positive life”.

Sagar.B

Hello my name is Sagar.B. I am basically from Bangalore. I am interested in Farming and hobbies are playing games. I love traveling.

“Don’t think you win or loose; ask yourself that did you give your best..if you think you have given your best be proud to yourself….if you haven’t given your best work hard for that best”
“If anyone is in trouble try to help them or give them your best advice”
“Always positive minded”
These lines helped me many times.

My wish is that no farmers should suicide because they are the back bone of every country…..so I love becoming a “Farmer”

I prefer animals more than humans because “feed a dog 3 times it remembers you 3 years….feed a human 3 years they forget you in three days.

K. SAI RISHI

This is Sai Rishi.I am from Andhra Pradesh, kadapa.I am pursuing my B.Tech program in presidency university ,Bangalore.I completed my Intermediate studies in Sri Chaitanya college,vijayawada.My hobbies are singing ,dancing and playing video games. “My attitude is always based on how you treat me “.During your life, never stop dreaming. No one can take away your dreams”

Sri Lekhya

This is Sri Lekhya. I am from Tirupati, Andhra Pradesh. I am pursuing my Btech in Presidency University, Bangalore. I completed my pre University in Sri chaitanya Junior college, tirupati. My hobbies are spending time with family and friends,watching movies and using phone. My way of life is “Self respect is everything but don’t go ahead with Ego”. My dream is to make my parents and brother proud of me.

Human impact

Challenges

Before flue-gas desulfurization was installed, the air-polluting emissions from this power plant in New Mexico contained excessive amounts of sulfur dioxide.

Amazon rainforest in Brazil. The tropical rainforests of South America contain the largest diversity of species on Earth, including some that have evolved within the past few hundred thousand years.See also: List of environmental issues and World Scientists’ Warning to Humanity

It is the common understanding of natural environment that underlies environmentalism — a broad politicalsocial, and philosophical movement that advocates various actions and policies in the interest of protecting what nature remains in the natural environment, or restoring or expanding the role of nature in this environment. While true wilderness is increasingly rare, wild nature (e.g., unmanaged forests, uncultivated grasslandswildlifewildflowers) can be found in many locations previously inhabited by humans.

Goals for the benefit of people and natural systems, commonly expressed by environmental scientists and environmentalists include:

Criticism

In some cultures the term environment is meaningless because there is no separation between people and what they view as the natural world, or their surroundings. Specifically in the United States, many native cultures do not recognize the “environment”, or see themselves as environmentalists.

What is Environment?

Geological activity

Main article: Geology

The Earth’s crust, or lithosphere, is the outermost solid surface of the planet and is chemically and mechanically different from underlying mantle. It has been generated greatly by igneous processes in which magma cools and solidifies to form solid rock. Beneath the lithosphere lies the mantle which is heated by the decay of radioactive elements. The mantle though solid is in a state of rheic convection. This convection process causes the lithospheric plates to move, albeit slowly. The resulting process is known as plate tectonics. Volcanoes result primarily from the melting of subducted crust material or of rising mantle at mid-ocean ridges and mantle plumes.

Water on Earth

Coral reefs have significant marine biodiversity.

Most water is found in one or another natural kind of body of water.

Oceans

An ocean is a major body of saline water, and a component of the hydrosphere. Approximately 71% of the Earth’s surface (an area of some 362 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt. Though generally recognized as several ‘separate’ oceans, these waters comprise one global, interconnected body of salt water often referred to as the World Ocean or global ocean. The deep seabeds are more than half the Earth’s surface, and are among the least-modified natural environments. The major oceanic divisions are defined in part by the continents, various archipelagos, and other criteria: these divisions are (in descending order of size) the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean and the Arctic Ocean.

Rivers

Main article: River

A river is a natural watercourse,usually freshwater, flowing toward an ocean, a lake, a sea or another river. A few rivers simply flow into the ground and dry up completely before reaching another body of water.

Rocky stream in the U.S. state of Hawaii

The water in a river is usually in a channel, made up of a stream bed between banks. In larger rivers there is also a wider floodplain shaped by waters over-topping the channel. Flood plains may be very wide in relation to the size of the river channel. Rivers are a part of the hydrological cycle. Water within a river is generally collected from precipitation through surface runoff, groundwater recharge, springs, and the release of water stored in glaciers and snowpacks.

Small rivers may also be termed by several other names, including stream, creek and brook. Their current is confined within a bed and stream banks. Streams play an important corridor role in connecting fragmented habitats and thus in conserving biodiversity. The study of streams and waterways in general is known as surface hydrology.Further information: Stream

Lakes

Lácar Lake, of glacial origin, in the province of Neuquén, Argentina Main article: Lake

A lake (from Latin lacus) is a terrain feature, a body of water that is localized to the bottom of basin. A body of water is considered a lake when it is inland, is not part of an ocean, and is larger and deeper than a pond.

A swamp area in Everglades National Park, Florida, US.

Natural lakes on Earth are generally found in mountainous areas, rift zones, and areas with ongoing or recent glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers. In some parts of the world, there are many lakes because of chaotic drainage patterns left over from the last Ice Age. All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them. heat Natural lakes on Earth are generally found in mountainous areas, rift zones, and areas with ongoing or recent glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers. In some parts of the world, there are many lakes because of chaotic drainage patterns left over from the last Ice Age. All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them.

Atmosphere, climate and weather

Atmospheric gases scatter blue light more than other wavelengths, creating a blue halo when seen from space.

A view of Earth’s troposphere from an airplane

Lightning is an atmospheric discharge of electricity accompanied by thunder, which occurs during thunderstorms and certain other natural conditions.

The atmosphere of the Earth serves as a key factor in sustaining the planetary ecosystem. The thin layer of gases that envelops the Earth is held in place by the planet’s gravity. Dry air consists of 78% nitrogen, 21% oxygen, 1% argon and other inert gases, such as carbon dioxide. The remaining gases are often referred to as trace gases,among which are the greenhouse gases such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Filtered air includes trace amounts of many other chemical compounds. Air also contains a variable amount of water vapor and suspensions of water droplets and ice crystals seen as clouds. Many natural substances may be present in tiny amounts in an unfiltered air sample, including dust, pollen and spores, sea spray, volcanic ash, and meteoroids. Various industrial pollutants also may be present, such as chlorine (elementary or in compounds), fluorine compounds, elemental mercury, and sulphur compounds such as sulphur dioxide [SO2].

World around us

For the biology term, see Biophysical environment. For other uses, see Environment. “Natural force” redirects here. For the album by Bonnie Tyler, see Natural Force.

Land management has preserved the natural characteristics of Hopetoun Falls, Australia while allowing ample access for visitors.

An image of the Sahara desert from satellite of the world’s largest hot desert and third-largest desert after the polar deserts

The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity. The concept of the natural environment can be distinguished as components:

In contrast to the natural environment is the built environment. In such areas where man has fundamentally transformed landscapes such as urban settings and agricultural land conversion, the natural environment is greatly modified into a simplified human environment. Even acts which seem less extreme, such as building a mud hut or a photovoltaic system in the desert, the modified environment becomes an artificial one. Though many animals build things to provide a better environment for themselves, they are not human, hence beaver dams, and the works of mound-building termites, are thought of as natural.

People seldom find absolutely natural environments on Earth, and naturalness usually varies in a continuum, from 100% natural in one extreme to 0% natural in the other. More precisely, we can consider the different aspects or components of an environment, and see that their degree of naturalness is not uniform.If, for instance, in an agricultural field, the mineralogic composition and the structure of its soil are similar to those of an undisturbed forest soil, but the structure is quite different.

Natural environment is often used as a synonym for habitat, for instance, when we say that the natural environment of giraffes is the savanna.

Design a site like this with WordPress.com
Get started