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ENVIRONMENT An introduction
“Nature is the art of God”Thomas Browne
Religio Medici1635
What IS environment???
•All those things which are naturally exiting around us•All living and non-living things occurring naturally on Earth or some region there of
Natural components
Human made components
Activities and interactions of human beings
Major components of the Environment
Natural Components•Air•Water•Soil•Plants
Human-Made Environment•Bridges•Parks•Road•Buildings
Human Activities and Interactions•Clearing forests for agriculture and shelter•Extracting minerals from the earth•Making dams for producing electricity.
What are the Environmental Process?
How Environment Remains Balanced?
Keep Environment healthy Supply oxygen
Plants play an active role
in Environment
Importance of Oxygen for Us and Our environment?
Animals and plants use oxygen forRESPIRATION
Oxygen helps us to burn the food we eat to release energy
Interesting facts about growing plants
Oxygen Production
●The amount of oxygen produced by an acre of trees per year equals the amount
consumed by 18 people annually. ●One tree produces nearly 260 pounds of
oxygen each year.●A single tree produces approximately 260 pounds of oxygen per year. That means two
mature trees can supply enough oxygen annually to support a family of four!
Interesting facts about growing plants
Carbon dioxide
●One acre of trees removes up to 2.6 tons of carbon dioxide each year.
● One tree can absorb as much carbon in a year as a car produces while driving 26,000
miles.● Over the course its life, a single tree can
absorb one ton of carbon dioxide.
Interesting facts about growing plants
Drinking water
●Water originating in our national forests provide drinking water for over 3400
communities, and approximately 60 million individuals.
Lets have a look and talk about our beautiful motherland.
Bangladesh is a South-East Asian
Country•Our country is covered by 17 national park and 17 wildlife sanctuaries.•We have only 12% forestland which is much lower than the required rate of 25%.
Natural Resources •Bay of Bengal•World’s largest sea beach- Cox’s bazar•World’s largest mangrove forest Sundarban•Biggest cat Royal Bengal tiger•Rainforest: Lawachara
Bangladesh: Wildlife
Bangladesh is home to roughly :
● Amphibian: 53 species● Reptile: 139 species
● Marine Reptiles: 19 species● Mammals: 116 species
● Marine mammals: 5 species● Birds: 650 species
Species facing serious threats of extinction:
● The Bengal tiger● Asian elephant● Hoolock gibbon
● Asian black bear ● Other flagship species.
1. 1. Reduce the usage
of your electrical
appliances
2. Drive your car less
3. Reduce the usage of
your wooden stove
4. Maintain a healthy
eco system
5. Reduce usage of
chemicals and
pesticides
6. Recycle the waste
products
7. Reduce carbon
footprints
8. Grow your food
locally
9. Reduce contaminants
10.Avoid the pollution
”Look deep into nature, and then you will understand everything better”
~ Albert Einstein~