In this chapter you will the environment

1. CHAPTER . 1 OUR
ENVIRONMENT

2. * ENVIRONMENT
Environment is our basic life
support system . It provides the air
we breath , the water we drink , the
food we eat and the land where live
.

3. COMPO
NENTS
OF
ENVIRO
NMENT

4. BIOTIC & ABIOTIC
•BIOTIC
THE WORLD OF
LIVING
ORGANISMS
•ABIOTIC
THE WORLD OF
NON- LIVING
ELEMENT

5. NATURAL ENVIRONMENT
Lithosphere – lithosphere is the solid crust or
the hard top layer of the earth .
Hydrosphere – the domain of water is
referred to as hydrosphere .
Atmosphere – the atmosphere is the thin
layer of air that surrounds the earth.
Biosphere – it is a narrow zone of the earth .

6. WHAT IS ECOSYSTEM ?
•It is a system formed by the interaction of
all living organisms with each other and
with f the physical and chemical factors of
the environment in they live , all linked by
transfer of energy and material .

8. Human environment

9. Do you know ?
•On 5 June every year the
world environment day is
celebrated .