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Course: Expected Questions Geo-Mains Paper GS- 1 Presented by Ashna Sisodia
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Question 5: In the light of recent heat waves that killed many in India, critically analyse their effect on the economy and health of the public. (200 Words)
Answer Heat wave refers to a situation when extremely high temperatures occur over a prolonged period of time. Although it is not yet officially recognized as a natural disaster, the harm it causes is catastrophic. Many people loses life due to it each year. The other health effects are also too agonizing. It gives rise to many immediate health problems like dehydration of the body that significantly decreases our efficiency of doing work It also causes physical health problems like heat edema (blood vessels expand), heat rashes and heat strokes. The heat increases the irritability, decreases the concentration and people thus tend to lose focus. Thus it causes serious mental and psychological problems as well.
Other effects: 1. Cardiovascular and respiratory disorders. 2. Heat strokes 3. Nausea and irritation 4. Cataract 5. Heat rashes and bacterial infection. 6. Insect borne diseases due to increase in the insect vectors.
Economic effects include: 1. Increased power requirements: Due to high temperatures, the need of Air conditioners and coolers increase, which creates a very high demand of electricity 2. Continuous power cuts, absenteeism leads to decrease in the industrial productivity. 3. Reduction in the growth of tourism sector. 4. Infrastructural development like roads and buildings are affected because of lack of labour 5. Extra load on the hospitals: The health problems associated with it directlv increases the load on all the medical facilities. The lack of such medical facilities in India, especially in the rural areas is a cause of concern
6. Damage to livestock, poultry, and dairy animals: The heat kills a lot of animals and they also suffer all the health problems, thus causing a significant loss to the economy 7. Overall efficiency of all the humans decreases, thus it may cause a decrease in the overall national production. 8. Agricultural remains one of the most severely affected industry due to decrease in the crop productivity and water requirements. Excessive evaporation from the soil leafs to acidification which as a result affects crop production
Question 6: What are the causes of origin of south west monsoon? (200 Words)
Introduction of South west Monsoon - Southwest monsoon are the rain 0 250 500 Miles bearing winds and is generally expected to begin around the beginning of June and fade away by the end of September. The moisture-laden winds on reaching the southernmost point of the Indian Peninsula, due to its topography, become divided into two parts: the Arabian Sea Branch and the Bay of Bengal Branch. 250500 Kilometers PAKISTAN New* Delhi BHUTAN Karachi BANGLADE Kolkata,n ropic of Cancer I N Mumbai Bay of Bengal Arabian Sea Rainfall in inches May through October Over 40 20-40 Colombo 10-20 S-10 Under 5 winds SRI LANKA MALDIVES INDIAN OCEAN Wet monsooin
Answer;: 1. Northward shifting of ITCZ : This shift in June causes low pressure at Tibetan plateau. Tropical Easterly Jets move towards the Mascarene High and moist monsoon winds from Mascarene High move towards Tibetan plateau. 2. Appearance of Somali Jet Stream in Summer: Somali Jet Streams appear in summer and intensify the Somali Ocean current. This pushes monsoon winds towards India 3. Absence of STWJ in winter : In winters, Sub Tropical Westerly Jet (STWJ) gets bifurcated and its one strand causes high pressure in India. In summers, entire STWJ shift beyond Himalayas and hence low pressure is maintained over India.