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. Lithosphere2. Hydrosphere3. Atmosphere4. 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 pollution2. Water pollution3. Soil pollution4. 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. Smog2. Acid rain3. Indoor air pollution4. Dust particle
PREVENTION OF AIR POLLUTION1. 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 affluents2. Mining and Agricultural Waste3. Sewage Disposal and Domestic Wastes
PREVENTION OF WATER POLLUTION1. Factories should not throw there waste in water bodies2. 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. Loudspeakers2. Aircrafts
PREVENTION OF NOISE POLLUTION1. 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 Earths 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 Pollution2. Waste Disposal
PREVENTION OF LAND POLLUTION1. 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.
• SOME EFFECTS OF• Help!! Ozone layer DEFORESTATON ON is being destroyed ENVIRONMENT• The ozone layer on the earth’s • Soil erosion atmosphere acts like a protective • Land slides umbrella. It blocks harmful rays of the sun and protects living • Land degradation things on the earth, it protects • Flooding from asteroids and meteoroids • Destroys vulnerable spices of plants which fall on the earth surface. 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 cistern3. 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.