Ecosystem ,biology, food chain,

1. ECOSYSTEM
• An ecosystem can be defined as a
biological system that consists of all the
living organisms (plants and animals) in
an area as well as the nonliving things
with which the organisms interact.
• In an ecosystem, all the components are
interdependent on each other.

2. INTRODUCTION
• An Environment is everything that is around
us, which includes both living and nonliving
things such as
• Soil
• Water
• Animals and plants , which adapt themselves
to their surroundings.
• It is nature's gift that helps in nourishing life
on Earth

4. FOOD CHAINS AND
WEBS
• A food chain is a network of links in a food
web.
• Here, the producers are consumed by the
predators-primary and secondary
consumers and then the detritivores and
finally by decomposers. When many such
individual food chains occur in an
ecosystem, it is known as Food Web.

7. FLOW OF ENERGY
• The flow of energy in an ecosystem follows
the 10% rule, meaning only 10% of the
energy is transferred to the successive
trophic level and the rest is lost in the
atmosphere.
• The energy is produced by the autotrophs, as
they have photosynthetic pigments to
harness the sunlight into chemical energy via
photosynthesis.

9. OZONE LAYER & IT’s
DEPELETION
• Ozone layer depletion is the thinning of the
ozone layer present in the upper atmosphere.
• This happens when the chlorine and bromine
atoms in the atmosphere come in contact with
ozone and destroy the ozone molecules.
• One chlorine can destroy 100,000 molecules of
ozone.
• It is destroyed more quickly than it is created.

11. MANAGING
GARBAGES
• 3R is an initiative which can be used to
minimize and manage waste generation,
usage, and its disposal.
• Reduce- This means to reduce the waste we
generate.
• Reuse- Items which can be reused should be
done.
• Recycle- According to this, waste items can be
processed to make new useful items.
•

13. CONCLUSION
• To maintain a healthy and balanced
ecosystem, humans need to be responsible
and cordial with the environment.
• We depend on the food chain or the food web
that is created by the components of the
environment.
• So taking care of our surroundings is the
utmost priority for the existence of life on this
planet.