Geography Solution–2020

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Group A

1. Write the correct answer from the given alternatives:
1.1 The process by which, soil and rock layers move down along the slope of highlands by gravity is called:
(a) Weathering
(b) Gradation process
(c) Endogenic processes
(d) mass wasting process (Ans)

1.2 In pediplain, low laying heals of hard rocks remain as residual landform is called:
(a) Yardang
(b) Zeugen
(c) sand dunes
(d) Inselberg (Ans)

1.3 “Horse latitude” is located at;
(a) equatorial low-pressure belt
(b) sub-tropical high-pressure belt (Ans)
(c) sub-polar low-pressure belt
(d) polar high-pressure belt

1.4 Diurnal range of temperature is maximum in:
(a) equatorial climatic region
(b) hot desert climatic region (Ans)
(c) tropical monsoon climatic region
(d) Mediterranean climatic region

1.5 The formation of ocean current depends on:
(a) prevailing winds (Ans)
(b) earth revolution
(c) sand banks
(d) all of them are applicable

1.6 The time difference between high and low tides at a place is nearly:
(a) more than two hours
(b) more than six hours (Ans)
(c) more than four hours
(d) more than eight hours

1.7 Carbon particles emitted by vehicles are controlled by use of;
(a) cyclone separators
(b) electrostatic precipitator
(c) scrubber (Ans)
(d) coated alumina

1.8 Parallel of latitude, passing through the middle of India is;
(a) equator
(b) tropic of Capricorn
(c) prime meridian
(d) tropic of cancer (Ans)

1.9 the lake located, in between the deltas of Godavari and Krishna rivers is:
(a) Kolleru (Ans)
(b) Pulicat
(c) Chilka
(d) Vembanad

1.10 The most extensive method of irrigation, practiced in India is:
(a) wells & tube wells
(b) tanks
(c) canals (Ans)
(d) sprinkler

1.11 Western disturbances occur in India during:
(a) Summer season
(b) Autumn season
(c) Rainy season
(d) Winter season (Ans)

1.12 Salty sea breeze is needed for;
(a) Sugar cultivation
(b) Tea cultivation
(c) Jute cultivation
(d) Coffee cultivation (Ans)

1.13 Petro-chemical industrial centre of west Bengal is located at;
(a) Junput
(b) Kolkata
(c) Sankarpur
(d) Haldia (Ans)

1.14 The colour used for drawing of contour lines in topographical map is:
(a) brown (Ans)
(b) black
(c) red
(d) blue

Group-B

2.1 If the statement is true, write ‘T’ and if false, write ‘F’ against the following (answer any six): –
2.1.1 The confluence of Alaknanda and Bhagirathi rivers is at Devprayag. True
2.1.2 Mistral is a warm local wind which blows over Rhone valley in France. False
2.1.3 Floods occur in India in the years El-nino. False
2.1.4 The position of sun, moon and Earth along a straight line is known as syzygy. True
2.1.5 Papers may be manufactured by recycling newspapers as a raw material. True
2.1.6 The soil composed of pebbles, sands and silts, found along the foot hills of Shivalik is called Bet. False
2.1.7 For analysis of satellite imageries, use of computer is mandatory. True

2.2 Fill in the blanks with suitable words (answer any six):
2.2.1 The process of modifying landforms by combined action of erosion and weathering is called Denudation.
2.2.2 Oases are formed by Erosion action of wind.
2.2.3 With the increase of air pressure gradient, wind velocity Increases.
2.2.4 The cold ocean water from polar region flows as Cold current towards equator.
2.2.5 The longest national highway of India is N.H 44.
2.2.6 Indian Space Research Centre is situated at Banglore.
2.2.7 In short, electronic waste is known as E waste.

2.3 Answer in one or two words (answer any six): –
2.3.1 Name the largest valley glacier of the world?
Ans: The largest valley glacier of the world is Hubbard.

2.3.2 Where in the atmosphere over the earth surface ozone hole was first discovered?
Ans: In Antarctica over the first ozone hole was discovered.

2.3.3 Name the southern most mountain pass of western ghats.
Ans: The southern most mountain pass of western ghats is Pal Ghat.

2.3.4 What is the local name of the Lagoons in Kerala coast?
Ans: The local name of the Lagoons in Kerala coast is Kayal.

2.3.5 Name the highest waterfall of India?
Ans: The highest waterfall of India is Jog waterfall.

2.3.6 In which city of India underground rail first started its journey?
Ans: In Kolkata the first underground rail started its journey.

2.3.7 Which is the most populour state of India?
Ans: U.P is the most populour state of India.

2.3.8 In what form the satellite imagery is produced?
Ans: The satellite imagery is produced in the form of digital data / FCC.

2.4 Match the left column with the right column:

Left ColumnRight Column
2.4.1) Ratna       High yield manufacturing center variety rice seed
2.4.2) Coniferous Forest Murmagaon Pine
2.4.3) Railway coach  Perambur port
2.4.4) Iron ore exporting Murmagaon

Group-C

3. Answer the following in brief (alternative should be noted): –
3.1 What is plunge pool?
Ans: A plunge Pool is a deep depression, forms when a river falls with great force and wears away the softer rocks.
Or, Define Loess.
Ans: A loess is a yellowish-grey coloured and extremely porous fine grained, formed when wind carries away tiny particles of clay and dust from desert and deposit them in the distant moist areas.

3.2 What is relative humidity?
Ans: It is ratio between the actual amount of water vapour present in the air at a temperature and the maximum amount of water vapour which the same volume of air can hold at given temperature.
Or, What do you mean by perigean tide?
Ans: perigean tide ia an ocean tide that occurs in the spring when the moon is at its perigee.

3.3 What is landfill in waste management?
Ans: Disposing or dumbing of waste in an organized way is known as landfill. This process of waste disposal focuses attention on dumbing the waste in the land far away from locality.
Or, Define municipal wastes.
Ans: The waste which is made up of residual waste, bulky waste, secondary materials from separate collection is called municipal waste.

3.4 Mention two characteristic features of desert vegetation in India.
Ans: i.The plants grow apart from each other.
ii. The plants have long roots and thicky fleshy stems.

Or, What do you mean by “Dun”?
Ans: Duns are longitudinal valleys formed as a result of folding when Eurasian plate and Indian plate collided. They are formed between Lesser Himalayas and Shiwaliks.

3.5 Define ancillary industry.
Ans: Ancillary industries are those which technically manufacture a wide range of things from a tiny pin, screw, and bolt to huge machines, machines part etc.
Or, Name the two terminal centers of longest inland water ways in India.
Ans: Banaras and Patna are the two terminal centres of the longest inland waterways in India.

3.6 What do you mean by senor?
Ans: A device which detects or measures a physical property and records, indicates or responds to it.
Or, State two usage of topographical maps.
Ans: Topographical maps are used for navigation, camping, hunting etc.

Group-D

4. Give brief explanatory answer (alternative should be noted): –
4.1 Discuss in brief about three processes of river transformational activity.
Ans: The process by which the transportational acitivity is done are as follows:-
i. Suspension:- Sand, silt and mud are carried in suspension.
ii. Saltation:- By this method the larger loads jump up and tgen hit the bed and side of tge channel.
iii. Traction load:- The materials which are too heavy to float are rolled along tge river bed as traction load.
Or, Mention the relationship between Jet stream and Indian monsoon system.
Ans: Or In summer, the easterly jet stream descend into high pressure area in over the southern Indian ocean. From this high pressure belt the wind blows towards the low pressure area in the northern part of India. After crossing the equator they blow as south-west summer monsoons. So, jet stream became the main causitive factor for determining the vigour of summer monsoon.

4.2 Classify wastes according to nature along with examples.
Ans: Types of wastes are as follows :-
i. Solid waste:- It includes mainly domestic or household wastes. eg:- Kitchen waste, plastic etc.
ii. Liquid waste:- Fluids as waste water, oils or grease etc. are categorized as liquid waste.
iii. Gaseous waste:- It includes uncontained airborne emissions and effluents, that may consist of particulate matter, dust, fames etc.
Or, State three necessities of waste management.
Ans: Or Waste management is urgently necessary for the following reasons:-
i. To control air pollution, soil pollution etc.
ii. To avoid spreading of infectious disease.
iii. To recycle hazardous waste for further use.

4.3 Discuss three advantages of roadways and railways in India.
Ans: Advantages of roadways:-
i. Roads provides door to door service.
ii. It helps in the faster movement of perishable commodities.
iii. Roads need less capital than the railways.
Advantages of railways :-
i. Railways carry large number of passengers.
ii. Tgey carry raw materials fuels and machinaries.
iii. They promote industrial growth and thus affects the economic dwvelopment of country.

Or, State the merits of agriculture revolution as experienced in the States of Punjab and Haryana.
Ans: Or Due to rise in production of cereals particularly wheat, India became self-sufficient in foodgrain production.
ii. Import of foodgrains has been reduced and through export of grains in India is earning foreign currency.
iii. Many agro-based industries have been setup in these states which provide employment to a large number of people.

4.4 Give an account of different types of scales in tabular form as used in “topographical maps”.
Ans: There are three ways in which scale of a map is expressed :-
i. Statement Scale:- It states what distance on the map is equal to what distance on the ground.
ii. Representative Fraction:- This scale is the ratio of the map distance to the equivalent distance on the
ground using the same unit for both.
iii. Linear Scale :- It represents the same relationship by means of straight line which is divided into certain length each of which represents a certaim distance on the ground
.
Or, Distinguish between geostationary and sun-synchronous satellites.
Ans: Sun Synchronous Satellite :-
i. Those satellites that moves around the earth and always gets its power source from sun is called Sun Synchronous Satellite.
ii. It located approx 750 km above the surface of the earth.
iii. It is used as military purpose.
Geo-Stationary Satellite :-
i. It remains above a fixed location on the earths surface approximately 22,500 km above the equator.
ii. They rotate at the same speed with the earth.
iii. It is used for weather forecasting.

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