Services (Prelims) Examination Special
Quick Revision Notes
precipitation (Acid Rainfall): is
now regarded as a serious problem in some European and Asian countries, the main
cause and source of which is emissions of sulphur oxides and nitrogen oxides
from thermal power plants and burning of fossil fuels. These oxides dissolve in
atmospheric water vapour and fall back on earth as acid rainfall. Acid rainfall
can cause destruction of crops and trees; destruction of fish; and damage to
Agronomy: Soil management and production of field crops is known as
Aleurone layer: is that part of the grain in cereals where much of the
soil: is the richest and most fertile soil of India spread over large areas
in northern plains of India.
Yoma: is the extension of the Himalayas located in Myanmar.
Lake : is located in Kerala State.
in Bastar district of Madhya Pradesh, is known for its wealth of Manganese.
(Tribes): The Barhara tribes mentioned in the Mahabharata who had settled in
the north-western regions of India, are associated withâ€”(1) Ambashthas (a
mixed Mongolian Aryan race); (2) Gandharas (Afghans); (3) Pavas (Parthians); (4)
Sakas (Scythians); (5) Yavanas (Greeks).
region: in south of the Shivaliks, is an example of Piedmont situation i.e.,
belonging to or related to the foot of a mountain.
(Tribes): They live in the Kalahari desert. They are probably the
descendants of the earliest inhabitants of Africa. They rank among the most
uncivilized and backward peoples in the world. Their food consists almost
entirely of meat, often raw or decomposed, and in times of scarcity they will
eat insects, snakes etc. Cardamom: Karnataka is the largest producer of
cardamom. India is the largest exporter of cardamom in the world.
Warm, dry wind experienced along the eastern side of the Rocky Mountains in
Canada and the U.S.A.
is a graphical representation of the differentiation between various types
of climate. It reveals the type of climate at a glanceâ€”a climograph showing
wet bulb temperatures and relative humidities which are high, for instance,
depicts a constantly hot damp climate.
of India, Length of: The length of Indiaâ€™s coastline is 7,516 km
and its territory includes 1,256 islands. Tamil Nadu has the longest coastline
year: One cosmic year is equal to the time taken by the sun to complete one
orbit around the galactic centre.
is the highest volcano in the world. It is situated in Ecuador.
Line, International: International Date Line is an internationally agreed
line drawn parallel to the 180Â° meridian. It divides the Pacific Ocean into two
equal parts. A crossing of the International Date Line entails repeating one day
when travelling westwards.
of India: Pithampur in Madhya Pradesh, where a large number of automobile
industries have been set up, is called the â€œDetroit of Indiaâ€.
Belt: is a zone of the tropics where the calm lasting for some weeks
prevails, broken at times by erratic squalls and baffling winds. It is an area
of low pressure. The wind system in the Equatorial areas is known as doldrums.
Devil: is a dusty whirlwind normally a few feet in diameter and about 100
feet tall, sometimes also wider and higher.
mass: The mass of the earth is about 81 times that of the moon.
core: is mainly composed of iron and nickel. Lithosphere is the innermost
layer of the earth.
Nino: is the weather phenomenon brewing in the tropical Pacific Ocean. It is
the largest climate event of the 20th century setting off more global disasters
than ever before. El Nino is warming of the waters off Equatorial South America
which causes climate abnormalities around the world. The impact can be flooding
drought in California, Brazil, Africa and Australia, severe storms in the
Central Pacific and a decline in hurricanes hitting the south-eastern United
This type of weathering is common both in the cold as well as in the hot
plant, First: The first fertilizer plant in India was set up at Sindri
(Tribes): Garos are the tribe of Garo Hills in Meghalaya.
lakeâ€”example in India: Dal Lake in Srinagar.
Circle: A circle on the earthâ€™s surface whose plane passes through its
centre, and bisects it into two hemispheres. Two opposing meridians together
form a Great Circle. The shortest distance between any two points on the earthâ€™s
surface is the arc of the Great Circle which passes through them. 0Â° latitude
forms a Great Circle. (The latitude or longitude 75Â°W should be combined with
75Â°E to obtain the Great Circle).
Latitudes: Sub-tropical belts of high atmospheric pressure over the oceans
situated in both hemispheres. These are called Belts of Calm between regions of
the Trade Winds and Westerlies of higher latitudes.
means cultivation of the plants without use of soil.
is the study of rainfall.
Point: in Andaman and Nicobar Islands is the southern-most tip of India.
area, Indian State having largest: The Indian State with the largest
irrigated area is Uttar Pradesh.
It is a slash and burn method of shifting cultivation (called jhum)
practised on rainfall- bed slopes of forest hills and dales in Arunachal
is a sea port situated at the head of the Gulf of Kuch in Gujarat State. It
was the first port to be developed after independence. It has a free trade zone.
(Tribes): were primitive tribes living in Orissa.
(Tribes) : are a race of Bantu negroes who live to the north of Mount Kenya.
These people combine agriculture with pastoralism.
(Tribes): of Central Asia are an example of people adapted to a grassland
environment. The Kirghiz are pastoral nomads who move from pasture to pasture
with the flocks and herds of horses, camels, oxen, sheep and goats. Meat forms
only a small portion of their food. The Kirghiz are fearless horsemen, and even
their children are expert riders.