Page 126 - SST Class 06

Oceans Other Water Bodies

Oceans are the vast water bodies and play an Besides the oceans, there are several other water
important role in the life of living beings. They bodies in the form of seas, bays, gulfs, rivers and
regulate temperature and climate of different lakes. They are important on the local level.
A F G H A N I S T A N
places. There are five oceans on the Earth—Pacific A sea is a vast water body, but smaller than an
JAMMU
&
Ocean, Atlantic Ocean, Indian Ocean, Arctic ocean. It is surrounded by land, such as the
KASHMIR
Ocean and Antarctic Ocean. Ladakh
Mediterranean Sea, Arabian Sea etc.
SRINAGAR
Leh
is a part of a sea partly enclosed by land,
Info Bits
Info Bits A gulf HIMACHAL C H I N A
PRADESH
SHIMLA
such as the Persian Gulf. TIBET
PUNJAB
CHANDIGARH A UTTARAKHAND
P A K I S T A N
The Indian Ocean is the only ocean to be named A bay ARYAN DEHRADUN
is a part of a sea or lake enclosed by a wide
A UNACHAL
H
DELHI
after a country. curve of the shore, but is wider than a gulf, such
H
PR DES
R
SIKKIM
A
N E P A L
as the Bay of Bengal.
R A J A S T H A N UTTAR GANGTOK BHUTAN ITANAGAR
Pacific Ocean JAIPUR PRADESH ASSAM
DISPUR NAGALAND
LUCKNOW KOHIMA
The Pacific Ocean is the largest and deepest PATNA SHILLONG MANIPUR
B I H A R MEGHALAYA IMPHAL
ocean in the world. The deepest point, Mariana H ND BANGLADESH
GANDHINAGAR H JHARK A AGARTALA AIZAWL
MADHYA WEST TRIPURATRIPURA MIZORAM
G U J A R A T
Trench, is located in this ocean. This ocean covers BHOPAL PRADESH TTISG AR RANCHI BENGAL
an area of 16,62,41,700 sq km, which is more CHHA KOLKATA
Daman
Daman
(D&D)
(D&D) D &NHD &NH
DIU
than the total land area in all seven continents. SILVASSA M A H A R A S H T R A RAIPUR O D I S H A MYANMAR
(D&D)
BHUBANESWAR
MUMBAI
Atlantic Ocean
HYDERABAD
The Atlantic Ocean is the second largest covering A K A TE LAN GA A B AY O F B E N G A L
S E A
A R A B I A N
N
about an area of 8,65,60,000 sq km. It is bounded T H A P ADESH
R
PANAJI R N A
by North America and South America in the west GOA AND R
and Africa and Europe in the east. It is shaped like K A
CHENNAI
the letter ‘S’. Its coastline is indented, which is BENGALURU U
favourable to the construction of seaports. (I LAKSHA K L N A D ( IN PORT BLAIR
A M I DIA) ANDAMAN AND NICOBAR ISLANDS
Indian Ocean ) DW KAVARATTI T ANDAMAN
E R
NDIA
SEA
EE
A L A
P
This ocean, named after our country, stretches for Gulf
THIRUV
THIRUVANANTHAPURAMANANTHAPURAM
of
Mannar
about 7,34,30,000 sq km. It is flanked by Asia in the KANYAKUMARIAKUMARI S R I
KANY
L A N K A
north, Australia in the east and Africa in the west. I N D I A N O C E A N
Arctic Ocean Bay of Bengal
The Arctic Ocean is located around the North ATMOSPHERE
Pole within the Arctic Circle and covers an area of
about 1,32,30,000 sq km. It is connected to the A sheet of air surrounds the Earth and is called
Pacific Ocean by the Bering Strait . The water in atmosphere. The air is made up of different gases.
this ocean remains frozen throughout the year, so The two chief gases are nitrogen and oxygen
it is difficult for the ships to sail here. which constitute 78 percent and 21 percent
respectively. The remaining 1 percent is made up
Antarctic Ocean or Southern Ocean
,
of different gases like carbon dioxide argon ,
The Antarctic Ocean lies in the farthest edge of helium , hydrogen etc. Carbon dioxide is present
the Southern Hemisphere. It comprises the in a small quantity, but it is important as it helps to
southmost waters of the world ocean. It is the absorb heat radiated by the Earth and helps to
fourth largest ocean. It surrounds the white keep it warm; also it helps plants to make food.
continent of Antarctica and remains forzen Nitrogen is helpful in the growth of living
throughout the year. organisms, while oxygen is the breath of life.
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