Lesson- 1. Environment
Exercise:
1. Write down the answers of the
following questions in approximately 1-15 words:
i.
What do you understand by environment?
ii.
How many types of environment are there? Give brief account
iii. By which name we call the sphere that is
product of interaction of three spheres, write in brief.
iv. Which are the main spheres of environment?
v.
What do you mean by the changing environment?
vi.
How do man affects environment?
vii.
Write down the names of layers of the earth.
ii. Fill in the blanks:
i.
Environment has been divided in---------- spheres.
ii. The SIAL layer of the earth is made up of
the material which is rich in and----------.
iii. NiFe is made up of the material which is
rich in and ---------- elements.
iv.
The different types of species of animals is known as ----------.
v. ---------- portion of Earth has been
covered by hydrosphere.
Activity:
Make
a list of factors which has effect over environment.
