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Geography 1 - 2017 (Explanations)
E1. Deccan plateau is located in the moderate
and low risk zones and it is a stable part and
not located in the plate boundary regions.
E2. All these types of climatic pattern exist in
India. Polar type – Kashmir, Desert –
Rajasthan, Cold humid – North Eastern states,
Monsoon – throughout India.
E3. Onshore planetary wind (Trade Winds)
carries moisture from sea to land in the
direction east to west.
E4. Only Mercury and Venus have no moons.
Rotational period of all inner planets differ.
Mars and Earth have similar rotational periods
but orbital period around the Sun varies.
E5. Monsoon failure is not normal every 4
years once. Monsoon causes orographic
E6. Ajanta, Balaghat, Nallamala hills
E7. Karbi Anglong of Assam gets more rain
in south west monsoon rainfall. East to west
rainfall decreases in North India.
E8. Seismic waves are evidences for the
existence of heterogeneous layers in the
E9. Eastern Satpura has moist deciduous.
Aravalli has dry deciduous.
E10. Pennar flows from west to east and
empties into Bay of Bengal.
E11. Humidity is more in tropics and
precipitation is more than subtropics. Duration
of day time in summer season is more in
subtropics and subsidence of the air mass in
subtropics increases the temperature near the
E12. Easterly Jet Stream blows from east to
west. It is continuous wind belt and called as
circum polar wind.
E13. Westerlies belt in northern hemisphere
shift to south during NH winter and causes
winter rainfall in south Western Europe, North
E14. Due to river shift and depositional work
by rivers, braided channels are formed.
E15. Continental shelves were not formed by
currents. Warm current causes moderate
weather in temperate regions. Salt is
distributed to low to high and high to low
E16. N.F-77%, Scrubs-1.26 % , Open forests9.14 % , Moderately dense-9.59 % , Very
dense forests- 2.61 %
E17. Due to the hard rock surface, rivers
follow slopes and can’t form dendritic pattern.
E18. All are tributaries of Cauvery. Just a few
years ago, Lokapavani and Veera Vaishnavi,
tributaries of Cauvery, were prime water
sources for farmers. These rivers have also
caused panic to the district administration
frequently by creating flood-like situations.
Today, they have dried up. One can see
villagers digging the beds of these tributaries
for sand or grazing cattle. The prevailing
drought, soaring temperature, illegal sand
mining, and encroachments are said to be
reasons for their drying up. (Source; The
Hindu, April 25, 2016)
E19. Vaishnaodev – J & K, West Kemang –
Arunachal. In all these 3 places landslide
occurred in this year. (Source: The Hindu:
the torrential rain has caused substantial
damage to a school building, circuit house and
storehouses of four government departments
besides flooding the local police station. This
is the second major landslide in Arunachal
Pradesh this year. A landslide triggered by
heavy rains enroute to the cave shrine of Mata
Vaishnodevi in Jammu and Kashmir’s Reasi
district. The landslide at Malin village, which
is nestled in the Sahyadri mountain range of
the Western Ghats, has set alarm bells ringing
about the impact of deforestation in this
ecologically sensitive zone)
E20. Lakshadweep has no mangrove cover.
Tamil Nadu and Odisha have largest cover of
Mangroves. Punjab and Haryana have least
forest cover proportion in North India.
E21. The crust forms only 0.5 per cent of the
volume of the earth, 16 per cent consists of the
mantle and 83 per cent makes the core.
E22. Three earth quakes in four days. What
you need to know? (the Hindu, Nov 26)
E23. Cold air in the upper troposphere is
denser and heavy in the upper part of sub
tropics that is why it tends to sinks down.
E24. Gorges are found in upper course of the
rivers in mountainous zones.
E25. It originates in Shiwalik range of
Himachal Pradesh. It flows through Haryana
and Rajasthan and empties in Thar Desert. It is
monsoon dependent River.
E26. Terai regions in the foothills of Shiwalik
have the given characteristics.
E27. Tundra has scanty precipitation.
Savannah has high annual
temperature. Temperate rain forests receive
very high rain fall.
E28. Kazakhstan,
Azerbaijan, Russia are Border States of
E29. Continentality climate is the reason for
this. The interior parts are located away from
the moderate influence of the wind from Sea.
E30. 10 degree channel separates Andaman
and Nicobar.
E31. Temperature inversion is normal
throughout the year in Polar Regions. It occurs
in both the hemisphere.
E32. Tropical and subtropical enclosed water
bodies have high annual and diurnal range of
E33. Day and night duration is equal in
equinox. In March month, spring in northern
hemisphere and autumn in southern
E34. Earth has tilted in its axis to about 23 ½
degree and the vertical rays are received only
in tropics.
E35. Eastern coast receive rainfall in north
east monsoon.
E36. Due to gravity and less intense of solar
wind cause light gas atmosphere in the outer
E37. Earth quake originates in any plate.
Tsunami is a sudden effect of earth quake and
not always caused by Earth quake.
E38. Gulf warm current extends into high
latitudes and north Atlantic drift moves
towards north eastern Atlantic
E39. Deccan Plateau area > Western Ghats,
Eastern Ghats > Plains
E40. Sabari River is tributary of Godavari
E41. Mahadeo in Madhya Pradesh, Ajanta in
MH and then in the south Harischandra range
is located
E42. Beas River empties into Sutlej River.
E43. Temperate deciduous receives more rain
than savannah, steppe, and tundra.
E44. Radial pattern of rivers are found in
central highlands.
E45. Not only inclination determines the
surface temperature. Maximum temperature is
recorded in subtropics.
E46. Relief features are permanent one for
longer periods. Pressure gradient force and
IOD will determine the intensity of monsoon.
E47. All the given plate boundaries are
convergence boundaries.
E48. Eruption mode is not determined by
E49. High tides and low tides occur twice in a
day in a place.
E50. Vegetation pattern determined biodiversity.
E51. Convectional rain occurs in summer in
many regions. Convergence belt is located in
mid latitudes also.
E52. Epicentre is nearest point to the focus in
the surface.
E53. Atolls are coral deposits and not made
up of volcanoes. Atolls are found in all
E54. Mercury has the lowest value and Venus
has the highest albedo value.
E55. Both crust and interior are dynamic.
Gravitation of the moon does not cause plate
E56. It reverses but every 40000 years once.
E57. Rotation of the earth causes day and
night. In day, noon and evening inclination of
rays change.
E58. Convection in equator due to
temperature causes that the thickness of the
troposphere in the atmosphere of earth is more
in equator than in poles.
E59. Both statements are correct.
E60. Range of temperature, wind erosion, biodiversity and rock weathering are factors form
E61. Eastern Rajasthan and western Madhya
Pradesh experience steppe type climate
E62. North east monsoon is easterly or north
easterly in eastern coast of India.
E63. Due to north eastern hills and Arakan
Yoma mountain wind is deflected to east.
E64. Narmada flows between Vindhya and
Satpura. Tapi flows between Satmala and
E65. Rann of Kachchh is hot dry climate
E66. Kjolen – Norway, Balkan – Balkan
Peninsula, Pindus – Greece
E67. Magnolia, Cinhona, Laurel are species in
Sholas forests.
E68. Mammals – tertiary, Mesozoic –
Dinosaurs, Homosapiens – Pleistocene
E69. Sikkim and northern Assam regions
have glaciers.
E70. Earth-flow- when rock materials such as
clay and silt saturated with water move down
a gentle slope. Mud flow – Movement of
water saturated rock debris down channels on
steep hill sides. Landslide- dry soil and rock
pieces suddenly move down a steep slope.
E71. Gulf is narrower than Bay and intensifies
E72. Sea floor spreading, identical coasts and
jig-saw fit of the continents are evidences.
E73. Carbon dioxide is transparent to solar
radiation but opaque to terrestrial radiation
and reflects back some part of it towards the
earth’s surface.
E74. Kashmir – polar type, October heat due
to shift in Sun’s vertical rays, North east
monsoon – winter rain
E75. Magma is the evidence for high
temperature inside the earth
E76. Inclination of Sun rays determines
temperature of a region. Gradient is not
E77. Laterites are good aquifer.
E78. Thermocline exists in summer in
subtropics and not exists in Polar regions.
E79. Submarine canyons are found in
continental slope
E80. Vertical rays cover less area than slant
rays and records high temperature.
E81. Cold Polar wind pushes the moist subtropic wind to rise and causes rainfall
E82. Radioactive decay causes convection.
E83. When both plates are of maritime, both
of them break, subduct and penetrate below
and, hence, trenches are formed.
E84. Kilimanjaro – Africa, Cotapaxi- south
America, Etna – Europe
E85. The water vapour present in the
atmosphere absorbs radiation, controls the rate
of evaporation
E86. The temperature at which a given sample
of air becomes fully saturated is called dew
E87. Subarnarekha is not a tributary of
E88. Cyclones dissipate during land fall.
E89. Cyclones do not cause Tsunami
E90. Sutlej and Indus originate in Tibet.
E91. Atmosphere has no limit.
E92. One millibar is equal to the force of
nearly one gram per square centimetre
E93. Nathu La – Sikkim, Lipulekh –
E94. Eastern Ghats receive winter rain and
contains tropical forests.
E95. Arid soil has the given characteristics.
E96. River has the least amount than the
given others.
E97. These two pressure belts are produced
by earth;s dynamic forces and not by
E98. All the given three are characteristics of
sub tropical high pressure belt.
E99. Luni empties into Rann of Kachchh.
Mahi and Sabamati empty into Arabian Sea.
E100. Dhaulagiri, Annapurna are located in
Nepal. Trishul is located in Uttarakhand.