Pre  2012

1. Consider the following factors:(2012)

1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth

Which of the above factors influence the ocean currents?

(a) 1 and 2 only

(b) 1, 2 and 3

(c) 1 and 4

(d) 2, 3 and 4

• Rotation of earth – Coriolis force deflects ocean currents
• Winds are the primary mover
• Now look at 3, density of water. High density water will sink,

2. When you travel in Himalayas, you will see the following :

1. Deep gorges
2. U-turn river courses
3. Parallel mountain ranges
4. Steep gradients causing land-sliding

Which of the above can be said to be the evidences for Himalayas being young fold mountains?

(a) 1 and 2 only

(b) 1, 2 and 4 only

(c) 3 and 4 only

(d) 1, 2, 3 and 4

• NCERT
• Himalayas young mountain, youthful river flowing through that so deep gorges and U turn river courses correct
• Young and fold, so originated in series so parallel ranges
• Steep gradient

3. Normally, the temperature decreases with the increase in height from the Earth’s surface, because

1. the atmosphere can be heated upwards only from the Earth’s surface
2. there is more moisture in the upper atmosphere
3. the air is less dense in the upper atmosphere

Select the correct answer using the codes given below :

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

• Everyone knows about 1 that atmosphere is heated by infrared radiation emitted by earth not by the ultraviolet radiation of sun
• 2nd statement is not true. What explains higher moisture in upper atmosphere. In fact moisture is more in lower atmosphere
• 3rd statement is true. Air is less dense, meaning can hold less heat thus temperature is low

4. Consider the following agricultural practices 

1. Contour bunding
2. Relay cropping
3. Zero tillage

In the context of global climate change, which of the above helps/help in carbon sequetration/storage in the soil?

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None of them

5. Which of the following is the chief characteristic of ‘mixed farming’?

(a) Cultivation of both cash crops and food crops

(b) Cultivation of two or more crops in the same field

(c) Rearing of animals and cultivation of crops together

(d) None of the above

• NCERT Question
• Mixed farming is agriculture with animal husbandry

Learnig -Interrcropping

6. Consider the following crops of India :

1. Cowpea
2. Green gram
3. Pigeon pea

Which of the above is/are used as pulse, fodder and green manure?

(a) 1 and 2 only

(b) 2 only

(c) 1 and 3 only

(d) 1, 2 and 3

• Common sense suggests all <i am not sure of the answer though>
• All three belong to same family

7. Consider the following crops of India :

1. Groundnut
2. Sesamum
3. Pearl millet

Which of the above is/are predominantly rainfed crop/crops?

(a) 1 and 2 only

(b) 2 and 3 only

(c) 3 only

(d) 1, 2 and 3

• Pulses and oilseeds are grown in rainfed areas.
• Ground nut – oil seed -grown in M.P.
• Sesmum – oil seed
• pearl millet – pulse

8. Consider the following areas:

1. Bandipur
2. Bhitarkanika
3. Manas
4. Sunderbans

Which of the above are Tiger Reserves?

(a) 1 and 2 only

(b) 1, 3 and 4 only

(c) 2, 3 and 4 only

(d) l, 2, 3 and 4

• Bhitarkanika is a wetland and has been asked before this and after this
• It’s famous for birds, not tigers, not a tiger reserve
• Exclude 2, reach the answer

9. A particular State in India has the following characteristics :

1. It is located on the same latitude which passes through northern Rajasthan.
2. It has over 80% of its area under forest cover.
3. Over 12% of forest cover constitutes Protected Area Network in this State.

Which one among the following States has all the above characteristics?

(a) Arunachal Pradesh

(b) Assam

(c) Himachal Pradesh

(d) Uttarakhand

• Only in North East and Andaman can 80% of area be under forests, Himachal and Uttarakhand ruled out
• Forest area in Assam can not be >80%. A large part of Assam is valley. It’s forest area is actually <50%

10. With reference to the wetlands of India, consider the following statements :

1. The country’s total geographical area under the category of wetlands is recorded more in Gujarat as compared to other States.
2. In India, the total geographical area of coastal wetlands larger than that of wetlands.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2

• Factual but wetlands very very important
• Doubt could be b/w Gujrat (rann of kutch and coastal wetland) and West bengal (sunderbans)
• 2nd is also factual

11. The acidification of oceans is increasing. Why is this phenomenon a cause of concern? 

1. The growth and survival of calcareous phytoplankton will be adversely affected.
2. The growth and survival of coral reefs will be adversely affected.
3. The survival of some animals that have phytoplanktonic larvae will be adversely affected.
4. The cloud seeding and formation of clouds will be adversely affected.

Which of the statements given above is /are correct?

(a) 1, 2 and 3 only

(b) 2 only

(c) 1 and 3 only

(d) 1, 2, 3 and 4

• 2 is correct, everyone knows that. Corals calcium Skelton, acid will dissolve that skeleton
• 1 is also true with similar logic, calcareous that is calcium Skelton will be dissolved by acid
• Now look at 4,  cloud seeding would be affected by particulates present in the atmosphere not that in ocean. Exclude 4, include 1 and 2
• shelter during a cyclone or tsunami

12. Which one of the following is the characteristic climate of the Tropical Savannah Region? 

(a) Rainfall throughout the year

(b) Rainfall in winter only

(c) An extremely short dry season

(d) A definite dry and wet season

• Covered in titbits
• Rainfall in winters only in Mediterranean
• Rainfall through out in evergreen forests
• Short dry season would not be conducive for fires