The document discusses two island groups of India - the Lakshadweep Islands and the Andaman and Nicobar Islands. The Lakshadweep Islands are a group of 36 coral islands located in the Arabian Sea, off the coast of Kerala. They have a total land area of 32 square kilometers. The Andaman and Nicobar Islands are located in the Bay of Bengal and comprise over 570 islands, of which around 38 are permanently inhabited. India's only active volcano is located on Barren Island in the Andaman and Nicobar Islands. Both island groups are known for their natural beauty and biodiversity.

1. BREAKING NEWS

2. THE ISLAND GROUPS OF INDIA
LAKSHADWEEP ISLANDS & ANDAMAN AND NICOBAR
ISLANDS
TEAM MEMBERS- SAYI GAYATHRI
DEVIKA C VINOD
PARVATHY ANIL
KAANTHIMA

3. THE ISLANDS
• An island or isle is any piece of sub -
continental land that is surrounded
by water.
• Island is any space of land which is smaller
than a continent and completely bordered
by water body.
• Very small islands such as emergent land
features on atolls are called islets. A key or
cay is another name for a small island or
islet.

4. • Islands may occur in ocean, seas or rivers.
• A group of islands is called as an
archipelago.
• There are two main types of islands in the
sea:
* continental
* oceanic
• There are also artificial islands, which are
man-made.
• There is no standard of size which
distinguishes islands from islets and
continents.

5. THE ISLAND GROUPS OF
INDIA
• India has a vast main land. Besides this,
the country has also two groups of
islands.
The Lakshadweep Islands
The Andaman & Nicobar Islands

6. Lakshadweep Islands
• Lakshadweep islands, the smallest union
territory of India, is a group of islands 200
to 300 km off of the coast of Kerala in the
Arabian Sea. It's located in 8º and 12º North
latitude and 71º and 74º East longitude.
• There are 36 coral islands that constitute
Lakshadweep islands, only 10 are inhabited
and only six have been opened for tourism.
• Their total land area is 32 sq km.

7. • These islands, formed of coral deposits,
are called atolls. Atolls are circular or
horse shoe shaped coral reefs.
• Kavaratti is the administrative
headquarters of Lakshadweep Islands.
• This island group has great diversity of
flora and fauna.
• The Pitti island, which is uninhabited,
has a bird sanctuary.
• Earlier Lakshadweep is known as
Laccadive , Minicoy , Aminidivi .
• LAKSHWADEEP IS THEN RENAMED ON
1973

10. CORALS
• Coral polyps are short-lived microscopic
organisms, which live in colonies.
• They flourish in shallow, mud free and
warm waters.
• They secrete calcium carbonate.
• The coral secretion and their skeletons
from coral deposits in the form of reefs:.
they are mainly of three kinds : barrier reef.

11. • Fringing reef and atolls. The Great Barrier
Reef of Australia is a good example of the
first kind of coral reefs.
• Atolls are circular or horse shoe shaped
coral reefs.

12. • THERE ARE MANY SPECIES OF CORALS SUCH AS
BLACK CORALS,BLUE CORALS, STONY CORALS,
THORNY CORALS ETC.
• A COMMON SPECIES OF PRECIOUS CORAL ,
CORRALIUM RUBRUM IS FOUND IN THE
MEDITERRANEAN SEA.
• ATOLLS AND CORAL REEFS ARE COMPOSED OF
STONY CORALS.
• BLACK CORALS AND THORNY CORALS OCCUR IN
THE MEDITERANEAN SEA , IN THE WEST INDIES
, AND OFF THE COAST OF PANAMA.
• CORALS ARE MAJOR CONTRIBUTORS TO THE
PHYSICAL STRUCTURE OF THE CORAL REEFS
THAT DEVELOP IN TROPICAL AND SUBTROPICAL
WATERS , SUCH AS THE GREAT BARRIER REEF

14. GREAT BARRIER REEF
• THE GREAT BARRIER REEF IS THE WORLD'S
LARGEST CORAL REEF SYSTEM. IT IS
SITUATED IN AUSTRALIA.
• THIS REEF STRUCTURE IS COMPOSED OF AND
BUILT BY BILLIONS OF TINY ORGANISMS
KNOWN AS CORAL POLYPS.
• THE GREAT BARRIER REEF CAN BE SEEN
FROM OUTER SPACE AND IS THE WORLD'S
BIGGEST SINGLE STRUCTURE MADE BY
LIVING ORGANISMS.

15. • THE GREAT BARRIER REEF SUPPORTS AN
EXTRAORDINARY DIVERSITY OF LIFE ,
INCLUDING MANY ENDANGERED SPECIES .

17. Andaman & Nicobar Islands
• The Andaman Sea (historically also known as
the Burma Sea) is a marginal sea of northeastern
Indian Ocean bounded by the coastlines of Myanmar
and Thailand along the Gulf of Martaban and west
side of the Malay Peninsula, and separated from
the Bay of Bengal to its west by the Andaman
Islands and the Nicobar Islands. Its southernmost
end is defined by Breueh Island, an island just north
of Sumatra, and communicates with the Malacca
Strait.

18. • The entire group of islands is divided into two
broad categories – The Andaman in the north and
the Nicobar in the south. The Andamans and
Nicobars are separated by a channel. Little
Andaman in the south is separated from the
Nicobar Islands by the Ten Degree Channel,
which is about 90 miles (145 km) wide.
• There are 572 islands in the territory, of which
only approximately 38 are permanently inhabited.
Most of the islands (about 550) are in the
Andamans group, 26 of which are inhabited. The
smaller Nicobars comprise some 22 main islands
(10 inhabited). These islands spread over a length
of 350 km.

19. • They are submerged hill ranges, some of them
are of volcanic origin.
• India's only active volcano is found on Barren
island in Andaman & Nicobar group of Islands.
• The total area of the Andaman & Nicobar
islands territory is approximately 8337 sq km
in which the total area of the Andaman Islands
is about 6,496 sq.km and the total area of the
Nicobar Islands is approximately 1,841 sq.km.
• The highest point is located in North Andaman
Island (Saddle Peak at 732 metres (2,402 ft)).

20. • They are bigger in size and are more
numerous and scattered.
• There is diversity of flora and fauna in this
group of islands. These islands lie close to
equator and experience equatorial climate
and has thick forest cover.
• Saddle Peak 👉👉

21. • These island groups are of great economic
and strategic importance for the country
• Tourism potential
• Trade
• Migration
• Smuggling of all natural resources
•
Control on Indian Ocean

23. INTERESTING FACTS
• The largest islands in the world include
Greenland ,Borneo , Baffin Island,
Madagascar and Sumatra.
• Java is the world's most populated island
with over 130 million people.
• The largest island in the Mediterranean
sea is Sicily.
• The highest mountain on an island is
Puncak Jaya on the island of New Guinea

24. • Andaman and Nicobar Islands is a home
to the world's largest sea turtle called
leatherback.
• Andaman and Nicobar Islands were an
active war zone during World War 2.
• Andaman and Nicobar Island has Asia's
only active volcano.

25. • Lakshadweep is known for the
production of Tuna fish.
• Lakshadweep Island is the smallest
union territory of India its total surface
area was only 32 sq km.
• Islands found in rivers or lakes are
sometimes referred to as Eyot.

26. DIU ISLAND LAKSHADWEEP ISLAND
BARREN ISLAND NEIL ISLAND

27. KADMAT ISLAND
ANDAMAN AND
NICOBAR ISLAND

28. QUESTIONS
1] what is the area of Lakshadweep?
Ans: The area of Lakshadweep is 32sq km.
2]What are the earlier names used for
Lakshadweep?
ANS :Laccadive, Minicoy, and Aminidivi.
3]Where is the Lakshadweep located and
where it is lying close to?
ANS: It is located on Arabian sea and west
of India . It lies close to Malabar coast of
Kerala.

29. 4]When is Lakshadweep renamed [ year]?
ANS: The Lakshadweep was renamed on
1973.
6]What is the historical name of Andaman
Sea?
Ans-The historical name of Andaman sea is
Burma sea.
7]What is the name of channel which
separates Andaman Islands from Nicobar?
Ans- The name of the channel is Ten Degree
channel.

30. 8] Where is India’s only active volcano
located?
Ans- India’s only volcano is found on
Barren Island in Andaman & Nicobar
Islands.
9] What are the coastlines which is
bounded by Andaman Sea ?
Ans- Andaman sea is bounded by the
coastlines of Myanmar and Thailand.

31. 10]What are the three kind of reefs?
Ans- The three kinds of reefs are Barrier reef,
Fringing reef , Atolls.
11]Where is the Great Barrier Reef located ?
Ans-The Great Barrier Reef is located in
Australia.
12]Name some species of Corals.
Ans- Some species of corals are – Black corals,
Blue corals , Thorny corals & Stony corals.
13]Which is the world’s largest coral reef
system?
Ans- The Great Barrier Reef is the world’s largest
coral reef system.