CLASS 7 ENVIRONMENT

1. Geography lesson

2.  Whatever we see in our surroundings make
the environment. For example table, chair,
computer, tree, river, paper, pen, dog, cat etc

3.  Environment means the surroundings or
conditions in which a person ,animal, or plant
lives or operates.
 Or
 Environment is a place ,people ,thing and
nature that surrounds any living organism. It
is a combination of natural and man made
resources.

4. Name 5 things in
your
environment

5.  1.Natural - the natural surroundings
 Air
 Water
 River
 Tree
 Animals
 Mountain
 Soil
 Land

6.  2. man made –it includes the things made by
man.
 Table
 Chair
 Pen
 Pencil
 Computer
 House
 Book

7.  3.Humans- it includes human related values
and beliefs.
 Family
 Community
 Religion
 Education
 Economy
 Political situation
 Government
 Street

11. Biotic –the world of living organisms.
 Plants
 Animals
Abiotic –the world of non-living
elements.
 Land
 Air
 Water
 Mountain

12. Lithosphere
Atmosphere
Hydrosphere
Biosphere

13.  Solid crust or hard top layer of the
Earth.
 Made up of rock ,soil and minerals.
 Includes landforms like mountains,
plains, plateaus, valleys, etc,.
 Found in continents and ocean floor.

14. Comprises all sources of
water
Like rivers, lakes, ponds,
seas, oceans,etc,.
It is essential for all living
organisms.

15.  Thin layer of air that surrounds the Earth.
 Gravitational force of the Earth holds it.
 It protects us from harmful ultra violet rays
from the Sun.
 It consists of number of gases, dust,
water vapour.
 The changes in atmosphere causes changes
in weather and climate.

16. Narrow zone of the Earth
where land, water, air meet
and support life is called
biosphere.
Plants and animals together
make biosphere.

17. Listen and
answer

18.  An eco system includes all of the
living things (plants, animals and
organisms) in a given area
,interacting with each other and
also with their non-living
environments (weather, sun , soil,
climate)

19.  Forest
 Mountain
 Grassland
 Desert
 Lake
 River
 Ocean
 Sea
 Garden

20.  Human beings interact with the
environment and modify it according to
their needs.
 We learned to grow crops and create a
system wherein transaction take place. For
example trade, commerce,transport etc.
 Furthermore, we gather things as per
demands .example to construct a building
we gather rocks,soil,wood,etc,.

21.  What is an eco system?
 What do you mean by natural environment?
 Which are the major components of the
environment?
 Give 4 examples of the human made
environment.
 What is lithosphere?
 Which are the 2 major components of biotic
environment?
 What is biosphere?

22.  Which is not a natural ecosystem?
a. Desert b. aquarium c.sea
 Which is not a component of the human
environment?
a. Land b. religion c. community
 Which is human made environment?
a.Mountain b. river c. road
 Which is a threat to the environment?
a. Growing plant
b. Growing population
c. Growing crops

23. Man modifies his
environment.
Plants and animals
depend on each
other .