environment

environment

ENVIRONMENT

• The place, people, things and nature that surround any

living organism is called environment.

• It is combination of natural and human-made phenomena.

• While the natural environment refers to both biotic and

abiotic conditions existing on the earth, human

environment reveals the activities, creations and

interactions among human beings.

NATURAL ENVIRONMENT• Natural environment consists of four spheres:-

1. Lithosphere

2. Hydrosphere

3. Atmosphere

4. Biosphere

WATER

• Water is the most wonderful

gift from nature.

• Water is known as the first

type or primary resources.

• Water is required for the

survival of all living beings.

AIR

• Air is an important

inexhaustible natural resource.

• It is essential for the survival

of human beings and also for

microbes, plants and animals

existing on the earth.

• Air is a mixture of various

gases in different proportions.

ECOSYSTEM

• All organisms such as plants, animals, microorganisms and

human beings as well as the physical surroundings interact with

each other and maintain a balance in nature.

• All the interacting organisms in an area together with the non-

living constituents of the environment of the environment form

an ecosystem.

• Thus, an ecosystem consists of biotic components comprising

physical factors like temperature, rainfall, wind, soil and

minerals.

ENVIRONMENTAL POLLUTION

• Environmental pollution is defined as any undesirable change in

physical, chemical and biological characteristics of air, land and

water. Pollution can be natural as well as man-made.

• The four major types of pollution are:-

1. Air pollution

2. Water pollution

3. Soil pollution

4. Noise pollution

AIR POLLUTION

• Air pollution is the human introduction into the atmosphere of

chemicals, particulate matter, or biological materials that cause harm

or discomfort to humans or other living organisms, or damage the

environment .

• Examples of air pollution :

1. Smog

2. Acid rain

3. Indoor air pollution

4. Dust particle

PREVENTION OF AIR POLLUTION

1. We should share vehicles for going

to office.

2. We should get a regular pollution

check of our vehicle.

3. We should use a bicycle for going

to near by places.

4. Chimneys of factories should be

fitted with proper filters to prevent

smokes from coming out and effect

atmosphere.

WATER POLLUTION

• Water pollution is the introduction into fresh or ocean waters

of chemical, physical, or biological material that degrades the

quality of the water and affects the organisms living in it.

• Examples of Water pollution :

1. Industrial affluents

2. Mining and Agricultural Waste

3. Sewage Disposal and Domestic Wastes

PREVENTION OF WATER POLLUTION

1. Factories should not throw

there waste in water bodies

2. People should not bath and

wash clothes in rivers or

lakes.

3. People should not take

there animals to take bath in

rivers or lakes.

NOISE POLLUTION

• Noise pollution is unwanted

human-created sound that disrupts

the environment. The dominant

form of noise pollution is from

transportation sources, principally

motor vehicles, referred to as

environmental noise.

• Examples of Noise Pollution:

1. Loudspeakers

2. Aircrafts

PREVENTION OF NOISE POLLUTION

1. We should not use loud

speakers.

2. Factories should be

made out of the city.

3. There should be not

more noise making

vehicles on the roads.

LAND POLLUTION

• Land pollution is the degradation

of the Earth's land surface through

misuse of the soil by poor

agricultural practices, mineral

exploitation, industrial waste

dumping, and indiscriminate

disposal of urban wastes .

• Examples of Land pollution :

1. Soil Pollution

2. Waste Disposal

PREVENTION OF LAND POLLUTION

1. People should not cut trees for

making furniture.

2. People should not throw garbage

on land.

3. Plastic bags should be avoided

for prevention of land pollution.

4. Industries should not throw there

waste on land.

• Help!! Ozone layer is being destroyed

• The ozone layer on the earth’s

atmosphere acts like a

protective umbrella. It blocks

harmful rays of the sun and

protects living things on the

earth, it protects from asteroids

and meteoroids which fall on

the earth surface.

• SOME EFFECTS OF DEFORESTATON ON ENVIRONMENT

• Soil erosion

• Land slides

• Land degradation

• Flooding

• Destroys vulnerable spices of plants

and animals

• Reduces levels of underground water

tables

• Affects the water table

SAVE ENVIRONMENT• We can make some promises to save the

environment:-

1. I promise to take a five minute shower

not a bath.

2. I promise to put a water saving device

in my toilet cistern

3. I promise to turn the tap off when I

brush my teeth.

4. I promise to use rechargeable batteries.

5. I promise to use a 'bag for life' when I

go shopping instead of plastic carriers.

SAVE ENVIRONMENT5. I promise to air my washing in public - not in the tumble dryer.

6. I promise to boil only the water I need, rather than filling the

kettle every time.

7. I promise to share my car journeys to work with a colleague,

cycle or replace car.

8.  I promise to journeys with public transport at least once a

week.

9. I promise to use a climate payback scheme to reduce the

impact of my air travel.

10. I promise to organise or volunteer for an environmental

project in my local community.

11. I promise that one day we will make a pollution free

environment.