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Lesson 2 (in Hindi)
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In this lesson, the educator talks about the expected questions that can be asked in the general studies mains geography section.

Ashna Sisodia is teaching live on Unacademy Plus

Ashna Sisodia
PSIR Optional Faculty, having scored 125+ in the prelims and 140 in Essay Paper and 110+ each in GS Papers in the UPSC Mains 2017.

U
Unacademy user
Utkarsh sir when will you teach calculas and conics?
Utkarsh Ujjwal
3 years ago
I'll finish algebra first .. Then after I'll teach that :)
di can u help me after read all sources of geogrphy i am not able to solve the question. i am in depression because of geography.pls di reply it
Ashna Sisodia
2 years ago
hi Akash, don't worry let me know first what are all those sources you have followed?
Akash Jindal
2 years ago
11th 12th and Goh Chengleong 1st part and unacademy video on summary of class 6th to 10th.
Ashna Sisodia
2 years ago
ncert and go Chen Leong both of them are very good books. they are sufficient for prelims and upto certain extent for mains. however you will need to do selective study for mains. Do one thing, either supplement it with Majid Hussain or give me your email ID I will share the relevant study material regarding geography in November.
Akash Jindal
2 years ago
my id di ; jindala85@gmail.com thnx di for support me i hope now i will manage this subject
Ashna Sisodia
2 years ago
hi Akash.. I could not find the PDF of book Khullar.. so I would suggest you purchase it online either on Flipkart or Amazon.
Akash Jindal
2 years ago
ok sure
Akash Jindal
2 years ago
again thnx for help
di we can add in question on heat wave ; govt. has launched BS IV norms vehicle to reduce pollution and stop BS III norms vehicle
Ashna Sisodia
2 years ago
yes, very good that's a good add on . well done :)
Akash Jindal
2 years ago
di thnx for appriciate
Nk
how southward movement of sun cause cold waves please explain those point which really want explanation ,do not simply read them ...thanx
can you provide the class in English also ? It would be really useful...
thanks mam.very very useful course .collection of questions is also very close to the nature of cse mains
  1. Course: Expected Questions Geo-Mains Paper GS- 1 Presented by Ashna Sisodia


  2. About Me: From Chandigarh, India o CSE Btech, UIET kurukshetra UPSC CSE mains qualified Interests Reading and Gym addict e Rate, Review and Recommend https://unacademy.in/user/AshnaSisodia


  3. Question 3: It is being reported that many parts of North India are suffering from severe cold waves. Examine the causes and nature of these cold waves. (150 Words)


  4. Background Data Polar Vorte>x Cold Wave High altitude low pressure Rapid fall in temperature within a 24 hour period system Both Hovers over the Arctic in winter Requires substantially increased protection to agriculture, Associated with record-breaking low temperatures in the mid-latitudes industry, commerce, and social activities A strong polar vortex contains coldest air masses in the polar region Criterion determined by the rate at which the temperature falls, and the minimum to which A weak polar vortex can cause colder than normal temperatures it falls at lower latitudes


  5. Question 3 : Cold Wave India has a monsoon type of climate with seasonal reversal of wind system due to interplay of a number of factors like circumpolar whirl, jet streams, movement of sun to north and south of equator, tropical and temperate cyclones The cold wave that establishes over northern India is a temporary phenomenon but carn remain active for a number of days. The main reasons for this cold wave are: 1. formation of temperate cyclones in area around Mediterranean sea and their movement towards east under influence of westerly jet stream. 2. southward movement of circumpolar whirl due to southward movement of sun 3. bifurcation of circum polar whirl by Himalayas and establishment of anticyclonic conditions over Multan and Karachi area of Pakistan.


  6. The southward movement of sun causes fall in temperature over north western and northern India . This causes formation of high pressure area in this region. The anticyclonic wind circulation in upper atmosphere due to southern branch of circumpolar whirl intensifies the subsidence of air in this area. Now the temperate cyclones which are brought by jet stream to this area do not get chance to rise upward due to subsiding air and further decrease the temperature of this area causing cold wave But as soon as these temperate cyclones also called as western disturbances gets a chance to rise due to weakening of subsidence of air, they cause winter ra northern and north-western India. Thus the nature of these cold waves is temporary. in


  7. Question 4: In India heat waves are on the rise thanks to climate change and related factors. What measures should be taken by governments to deal with heat waves and their effects? Examine. (200 Words)


  8. HEAT WAVE HEAT WAVE ALREADY? April to June is the typical heat wave season But due to a hot March. April 2017 also saw surge in temperature AVERAGE TEMPERATURE (DEG CELSIUS) ALL-TIME APRIL APRIL 2017 Kozhikode Anantapur Mumbai Delhi Lucknow Nizamabad 38 38 38 38.2 41 DATA TILL APR 18 2017


  9. Answer Heat waves are a phenomenon in which there is a prolonged period of excessive hot weather. Heat wave onset in considered only after the maximum temperature of an area reaches at least 40 degrees in the plains and at least 30 degrees in the hilly regions. It poses a risk to lives of people, especially to the vulnerable sections of society like the homeless, physical labourer, malnourished children etc. Andhra Pradesh, Telangana, Odisha are particularly susceptible to heat wave


  10. Measures: 1. Heat wave action plan must be developed which should take States on board. Till now, Ahmedabad is the only city which has HWAP. It should deal with early warning, building public awareness and building a trained healthcare workforce. 2. There should be an aggressive public awareness campaign especially in vulnerable regions. Radio, newspapers, mobile alerts, TV all should be used so as to reach even the last person. This is to educate people to look for early signs and symptoms and to take care of their diet during summers 3. Heat waves should be included in the list of natural disasters which can ensure more systematic planning for mitigation 4. Temporary relief centres (made with bamboo or coconut leaves),