Statement- I
The atmosphere is heated more by incoming solar radiation than by
terrestrial radiation.
Carbon dioxide and other greenhouse gases in the atmosphere are good
absorbers of long wave radiation.
Which one of the following is
correct in respect of the above statements?
(a) Both statement-I and Statement- II are
correct and Statement- II explains statement- I
(b) 
Both statement- I and statement-II are correct, but statement-II does
not explain statement-I
(c) 
Statement- I is correct, but statement- II is incorrect
(d)
Statement- I is incorrect, but statement-II is
correct
Explanation
Ans: (d)
The incoming solar radiation becomes short waves
forms. After receiving incoming solar radiation, the earth becomes a radiating
body and releases energy in the form of long waves of radiation to the atmosphere
(called terrestrial radiation). Caron dioxide and other greenhouse gases absorb
these long waves of radiation. For this reason, the atmosphere is more heated
by terrestrial radiation than incoming solar radiation. (NCERT Geography book class XI “Fundamentals of Physical Geography”,
page no – 81, section – Terrestrial Radiation).
So, statement – I is incorrect, and statement –
II is correct.
2.
Consider the following Statements:
Statement- I
Thickness of the troposphere at the equator is much greater as compared
to Poles.
At the equator, heat is transported to great heights by strong
Convectional currents.
Which one of the following is
correct in respect of the above statements?
(a)
Both statement-I and
Statement- II are correct and Statement- II explains statement- I
(b) Both statement- I and statement-II
are correct, but statement-II does not explain statement-I
(c) Statement- I is correct, but
statement- II is incorrect
(d) Statement- I is incorrect, but
statement-II is correct
Explanation
Ans:
(a)
The
average height of the troposphere is 13 Km and extends roughly to a height of 8
Km near the poles and about 18 Km at the equator. (NCERT
Geography book class XI “Fundamentals of Physical Geography”, page no. 77, section
– structure of the atmosphere).
For
direct sunlight received at the equator, the surface level is more heated, and
strong convection currents transport heat to greater heights. For this reason, the
troposphere layer is thicker at the equator.
So,
statement – I and II are correct
3. Consider the following :
1. Pyroclastic debate
2. Ash and dust
3. Nitrogen compounds
4. Sulfur compounds
How many of the above are products
of volcanic eruptions?
(a) Only one
(b) Only two
(c) Only three
(d)
All four
Explanation
Ans: (d)
All four are reaches to the surface with volcanic eruptions. (NCERT Geography book class XI “Fundamentals of Physical Geography”, page no – 26, section – volcanoes and volcanic landforms).
4. Which of the following is/are correct
inference/inferences from Isothermal map in the month of January?
1. The isotherms deviate to the north
over the ocean and to the south over the continent.
2. The presence of cold ocean currents,
Gulf Stream and North Atlantic Drift make the North Atlantic Ocean colder and
the isotherms bend toward the north.
Select the answer using the code given:
(a)
1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Explanation
Ans: (a)
The
presence of warm ocean currents, Gulf Stream and North Atlantic Drift makes the
North Atlantic Ocean warmer and the isotherms bend toward the north. (NCERT Geography book class XI “Fundamentals of
Physical Geography”, page no – 83, section – Distribution of Temperature)
5. Which of the following countries are
well known as the two largest cocoa producers in the world?
(a) Algeria and Morocco
(b) Botswana and Namibia
(c)
Cote d’Ivoire and Ghana
(d) Madagascar and Mozambique
Ans: (c)
Côte d’Ivoire and Ghana are
both West African countries. Côte d’Ivoire is the largest producer of cocoa,
and Ghana is the second largest producer of cocoa. Both countries are producing
more than half of the total cocoa production in the world.
6. With reference to the Himalayan rivers
joining the Ganga downstream of Prayagraj from West to East, which one of the
following sequences is correct?
(a) Ghaghara – Gomati – Gandak – Kosi
(b)
Gomati – Ghaghara – Gandak –
Kosi
(c) Ghaghara – Gomati – Kosi – Gandak
(d) Gomati – Ghaghara – Kosi – Gandak
Explanation
Ans: (b)
(NCERT
Geography book class XI “India: Physical Environment”, page no – 25, section – The
Ganga system).
7. Consider the following statements:
Statement – I :
Rainfall is one of the reasons for weathering of
rocks.
Rain water contains carbon dioxide in solution.
Rainwater contains atmospheric oxygen.
Which one of the following is correct in respect of the above
statements?
(a)
Both statement - II and
statement - III are correct and both of them explain statement – I
(b) Both statement - II and statement -
III are correct, but only one of them explains statement – I
(c) Only one of the statements - II and –
III is correct and that explains statement – I
(d) Neither statement – II nor statement
- III is correct
Explanation
Ans: (a)
When rainfall occurs, carbon dioxide dissolves
into rainwater and makes a weak acid. This is a reason for the weathering of
rocks.
Oxygen also
dissolved into the rainwater. It creates an oxidation process.
(NCERT Geography book
class XI “Fundamentals of Physical Geography”, page no – 48, section – Chemical Weathering
Processes).
Statement I,
II, and III are correct.
8. Consider the falling countries:
1. Finland
2. Germany
3. Norway
4. Russia
How many of the above countries have a border
with the North Sea?
(a) Only one
(b)
Only two
(c) only three
(d) All four
Explanation
Ans: (b)
Germany and Norway have a border
with the North Sea.
1. Dhuandhar Malwa Narmada
2. Hundru Chota Nagpur Subarnarekha
3. Gersoppa Western Ghats Netravati
In how many of the above Is the given
information correctly matched?
(a)
Only one
(b) only two
(c) all three
(d) None
Explanation
Ans: (a)
Dhuandhar
waterfall is located at Jabalpur (Madhya Pradesh). It is created by the Narmada
River. This river originates from the Amarkantak Plateau (Madhya Pradesh).
Malwa region is also primarily located in Madhya Pradesh, but it is not related
to the Narmada River. So, the first row is incorrect.
Hundru
waterfall is located at the Chota Nagpur plateau in Jharkhand. It is created by
the Subarnarekha River. So, the second row is correct.
Gersoppa
waterfall is located in the Western Ghats region (Karnataka). It is created by the
Sharavathi River. Netravati River also originates from the Western Ghats in
Karnataka. so, the 3ed row is incorrect.
10. Region Name of the mountain
range Type of
mountain
1. Central Asia Vosges
Fold mountain
2. Europe Alps
Block Mountain
3. North America Appalachians
Fold mountain
4. South America Andes Fold
mountain
In how many of the above rows is
the given information correctly match?
(a) Only one
(b)
only two
(c) only three
(d) All four
Ans: (b)
Vosges Mountains
are located in Europe. It is block mountains. so, 1st row is
incorrect.
The Alps
mountains are located in Europe. It folds mountains. So, 2nd row is incorrect.
Appalachian
Mountains are located in North America. It folds mountains. So, 3ed row is
correct.
The Andes Mountains
are located in South America. It folds mountains. So, 4th row is
correct.
1. It is a gas, The amount of which
decreases with altitude.
2. Its percentage is maximum at the
poles.
Select the answer using the port given below:
(b)
2
only
(c)
Both
1 and 2
(d) Neither 1 nor 2
Explanation
Ans: (a)
Water vapour is created from surface level
mostly water bodies by temperature. So, it has maximum concentration in the lower
level and decreases with altitude.
More temperature increases water retention capacity
in the form of water vapor. So, equatorial regions have the maximum percentage
of water vapor.
12. Consider the following description:
1. Annual and daily range of
temperature is low.
2. Precipitation occurs throughout the
year.
3. Precipitation varies between 50 cm –
250 cm.
What is this type of climate?
(a) Equatorial climate
(b) China type climate
(c) Humid subtropical climate
(d)
Marine West Coast climate
Explanation
Ans: (d)
Marine west
coast climate, this climate extends north–west Europe, the Coastlands of
British Columbia, Chile, New Zealand, and Tasmania. The annual and daily range
of temperature is low in this climate. Precipitation occurs throughout the year,
around 50 cm – 250 cm. (G C Leong Book, Chapter – The Cool Temperate Western
Margin Climate, Page no – 163).
13. With reference to “Coriolis force”, which
of the following statements is/are correct?
1. It increases with increase in wind
velocity.
2. It is maximum at the Poles and is
absent at the equator.
Select the answer using the code given below:
(a) 1 only
(b) 2 only
(c)
Both 1 and 2
(d) Neither 1 nor 2
Explanation
Ans: (c)
Deflection is more with the increase of wind
velocity for the Coriolis force. Yes, it is more at the polar regions and
absent at the equator. (NCERT Geography book class
XI “Fundamentals of Physical Geography”, page no – 90, section – Coriolis
Force)
14. On June 21 Every year, which of the
following latitude(s) experience(s) a sunlight of more than 12 hours?
1. Equator
2. Topic of cancer
3. Topic of Capricorn
4. Arctic circle
Select the correct answer using the court given
below:
(a) 1 only
(b) 2 only
(c) 3 and 4
(d)
2 and 4
Explanation
Ans: (d)
On June 21,
this is the time of Uttarayan. When the sun is directly above on Topic of
Cancer. So, this time increases the duration of the time with the increase of
latitude in the Northern Hemisphere. For example, on June 21, the duration of daytime
is 12 hours at the equator, and in the North Pole, the duration is 6 months.
(NCERT
Geography book class XI “Fundamentals of Physical Geography”, page no – 80,
section – Table 9.1)
15. One of the following regions has the
world’s largest tropical peatland, which holds about three years worth of
global Carbon emissions from fossil fuels; the possible destruction of which can
exert detrimental effect on the global Climate. Which one of the following
denotes that region?
(a) Amazon Basin
(b)
Congo Basin
(c) kikori Basin
(d) Rio de la Plata Basin
Explanation
Ans: (b)
16. Consider the following statements:
Statement – I
Giant stars live much longer than dwarf stars.
Compared to dwarf stars, giant stars have a greater rate of nuclear
reactions.
which one of the following is correct in respect of the above statements?
(a) Both statement - I and statement -
II are correct and statement - II explains statement - I
(b) Both statements – I and statement - II
are correct, but statement - II does not explain statement - I
(c) Statement - I is correct, but
statement - II is incorrect
(d)
Statement – I is incorrect,
but statement - II is correct
Explanation
Ans: (d)
The lifespans of giant stars are shorter
than dwarf stars. Because giant stars have higher core temperatures and more
mass. So, by their fuel, these giant stars burn faster.
Yes,
compared to dwarf stars, giant stars have a greater rate of nuclear reactions.
Due to more mass and higher core temperatures.
17. The longest border between any two
countries in the world is between
(a)
Canada and the United States
of America
(b) Chile and Argentina
(c) China and India
(d) Kazakhstan and Russian Federation
Explanation
Ans: (a)
The largest border between two
countries is between Canada and the United States of America (8,891 km). The
second largest border is between Kazakhstan and Russia. The third largest
border is between Chile and Argentina.
18. Consider the following statements:
1. The Red Sea receives very little
precipitation in any form.
2. No water enters the Red Sea from
rivers.
Which of the statements given
below is /are correct?
(a) 1 only
(b) 2 only
(c)
Both 1 and 2
(d) Neither 1 nor 2
Explanation
Ans: (c)
Yes, the Red Sea receives very
little precipitation. It is situated in Hot desert climates (G C Leong book/
Page no—134). And no river falls into this water body.
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