This slide gives a primary knowledge about Eco system or nature, our surroundings

1. Eco System
and
Waste management

2. Eco System
An ecosystem can be visualised as a functional unit of nature, where living
organisms interact among themselves and also with the surrounding physical
environment.
Waste
It is defined as an Unwanted or discarded waste material from houses, street
sweeping, commercial industrial, and agricultural operation arising from
man's activities
Waste management
waste disposal includes the activities and actions required to manage waste
from its inception to its final disposal. This includes the collection, transport,
treatment and disposal of waste, together with monitoring and regulation of
the waste management process

3. ല ോകലേ തറവോട്,
തനിക്കി ചെടികള ും
പുല്‍കള ും പുഴുക്കള ും
കൂടിതന്‍ കുടുുംബക്കോര്‍
എചെ ഗുരുനോഥന്‍ - വള്ളലതോൾ

4. Eco System
The ecosystem is the structural and functional unit of
ecology where the living organisms interact with each other
and the surrounding environment. In other words, an
ecosystem is a chain of interaction between organisms and
their environment. The term “Ecosystem” was first coined by
A.G.Tansley, an English botanist, in 1935.

5. Types of Ecosystem
An ecosystem can be as small as an oasis in a desert,
or as big as an ocean, spanning thousands of miles.
There are two types of ecosystem:
• Terrestrial Ecosystem
• Aquatic Ecosystem

6. Terrestrial Ecosystems
Terrestrial ecosystems are exclusively land-based
ecosystems. There are different types of terrestrial
ecosystems distributed around various geological zones.
1. Forest Ecosystems
2. Grassland Ecosystems
3. Tundra Ecosystems
4. Desert Ecosystem

7. Aquatic Ecosystem
Aquatic ecosystems are ecosystems present in a body of
water. These can be further divided into two types,
• Freshwater Ecosystem
• Marine Ecosystem

8. Structure of the Ecosystem

10. Important Ecological Concepts
1. Food Chain
2. Ecological Pyramids
3. Food Web

11. Functions of Ecosystem
• It regulates the essential ecological processes, supports life systems and
renders stability.
• It is also responsible for the cycling of nutrients between biotic and
abiotic components.
• It maintains a balance among the various trophic levels in the ecosystem.
• It cycles the minerals through the biosphere.
• The abiotic components help in the synthesis of organic components that
involves the exchange of energy.

12. WHAT IS WASTE?
Living beings require food and essential things. In the process
they also generate wastes.
Waste is defined as unwanted and unusable materials and is
regarded as a substance which is of no use.

13. SOURCES OF WASTE
Sources of waste can be broadly classified into five types:
Industrial
Commercial
Domestic
Biomedical
Agricultural.

14. TYPES OF WASTE
Commonly waste is classified into two types: Biodegradable and
Non-biodegradable waste.
A biodegradable substance can be defined as a material which can
be decomposed by microorganisms or decomposers and not be
adding to any type of pollution. Waste that cannot be decomposed
by the biological ways is called the Non-biodegradable wastes.

15. E WASTE
E-waste is electronic products that are unwanted, not working, and
nearing or at the end of their “useful life.” Computers, televisions,
VCRs, stereos, copiers, and fax machines are everyday electronic
products.

16. TIPS TO REDUCE WASTES
1.Take small portions of food and go back for "seconds" if you are
still hungry
2.Buy a lunch box and be cool.
3.Collect and recycle aluminum cans and plastic bottles.
4.Use a pencil and erase any mistakes.

17. Merits and demerits of
ecosystem waste
management

18. Advantages or Benefits of
Waste Management
• This practice is highly lucrative
• Keeps the environment clean and fresh:
• Saves the Earth and conserves energy:
• Reduces environmental pollution
• Waste management will help you earn money:
• Creates employment

19. Disadvantages of Waste Management
• The process is not always cost-effective
• The resultant product has a short life:
• The sites are often dangerous
• The practices are not done uniformly
• Waste management can cause more problems
• Heavy capital investment