One Word Answer
a) The deepest point of the Earth and its location- Mariana Trench in Pacific Ocean
b) A group of islands in the Pacific Ocean- Micronesia, Melanesia and Polynesia.
c) The Ocean that is the Busiest of all Oceans-Atlantic Ocean
d) The Oceans surrounding the north Polar and south Polar regions respectively-Arctic Ocean
and Southern Ocean.
e) The largest saltwater lake of the world-The Caspian sea.
f) A river in England that form an estuary- Thames.
g) The famous waterfall between lake Erie and Lake Ontario in north America-Niagara falls
h) The deepest freshwater lake of the world-Lake Baikal.
i) A largse lake near the African Rift Valey-Lake Victoria.
j) The largest Freshwater Lake of Europe-Lake Ladoga.
k) One remains afloat even without knowing to swim-Bordering Jordan,Israel.
l) Largest deep V shapped Valleys called canyons or gorge- The Grand Canyon, Arizona.
m) Lagoons –Chilika in the odisha
Differentiate Between Deltas and Estuaries:
Deltas Estuaries
It is the triangular deposits made by the river at It is the sharp edged mouth of the river which
their mouth devoid of any deposits
If is formed in the regions of low tide and coastal It is formed in the region of high tides and rift
plains Valley
Gulf Bay
It is a water body that enters deep inside the It is a water body that is enclosed by the land on
land. three sides leaving a wide mouth.
Gulf of Maxico,Gulf of Kutch The Bay of Bengal, The Bay of Biscay
Marginal seas Inland seas
They are large water bodies along the continent Some lakes are too big for their size and are
margins called Inland sea
Bering sea, North sea The Caspian sea, Aral sea
Q)How caynons are formed?
Rivers begin journey from mountains. Meltwater from glaciers,rain water gives rise to rivers.The
river is young as it move across the mountains. It has speedy course and so cuts out deep V shapped
Valleys called canyons or gorge.
Q)What is Meanders formed?
As the rivers comes out of the mountains, it enter the flat plains here its speed is no more rapid.Ow,
the river swing from side to side forming the bends known as meanders.
Q) Give reasons.
Q)Why rivers are Valuable to the farmers?
Ans)1)The deposits of rivers forms rich alluvial plains ideal for farming.
2)River Provide water for Irrigation.
Q)Fresh water is extremely precious to us?
Ans)Fresh water is used for drinking to survive, for crops irrigation, etc. Oceans and sea water is
salty. Fresh water is only found in rivers , lakes, underground, glaciers which are small than oceans
and seas ,so Fresh water is extremely precious to us.
Q)Atlantic coastal has several natural harbours?
Ans) The coastal lines of Europe and North America are irregular in shape, therefore a there are a
large number of natural harbours on Atlantic coastal.
Q)Name the ocean that is shaped like letter ‘S’. Which are the continents that lie to its east and
west?
Ans) The Atlantic Ocean is shaped like letter ‘S’.
North America and South America lies to its east and Europe and Africa lie to its east.
Q)Why is the Indian Ocean so named? Which are the continents surrounding it in the west and
east?
Ans) The Indian Ocean is named after India, indicating the strategic location of the country at the
head of the Ocean.
The continents surrounding are:
Africa in the west.
Asia in the north.
Australia in the east.
Q)Name the continents bordered by the Pacific Ocean. Name the Ocean that is links to it in the
north?
Ans) The Pacific Ocean is bordered by North America and South America in the east and Asia and
Australia in the West. Arctic Ocean links to it in the north.
Q)Name the Oceans of the world in the order of their respective sizes.
The Oceans in decreasing Order are:
The Pacific Ocean
The Atlantic Ocean
The Indian Ocean
The Arctic Ocean.
Amazon selvas
Nile Largest river in the world
Ganga Gangotri Glaciers
R. Yangtze Three Gorges Dam
R.Mississippi North America
R.Danube Black sea
R. Ob Arctic Ocean
R.Indus Arabian sea
R.Hwang Ho China
R. Volga Longest river of Europe
