STD 8 Social Science Chapter 13 As the Torrential Rain Poured Down - Questions and Answers


Study Notes for Class 8 Social Science: പേമാരി പെയ്തിറങ്ങിയപ്പോൾ | Text Books Solution Social Science (English Medium): Chapter 13 As the Torrential Rain Poured Down

Class 8 Social Science - Questions and Answers: Chapter 13: As the Torrential Rain Poured Down
As the Torrential Rain Poured Down - Questions and Answers
1. Natural phenomena have a considerable impact on the physiographic structure, climate as well as life forms in any region. Write examples of Natural phenomena
Answer: Earthquakes, volcanic eruptions, tsunamis, sea surges, storms, torrential rains, severe drought, severe cold and changes in direction of river flow.

2. Write a short note on the impact of natural phenomena on lifeforms.
Answer:
• The danger of death or physical injury
• May lose your home, possessions, and community.
• Chronic disease and short-term unemployment

3. Write a brief summary of the tsunami that occurred on 26 December 2004.
Answer:
• Devastating waves swallowed our coasts and caused severe damage to life and property.
• Earthquakes occurred near Sumatra, the Indonesian Island in the Indian Ocean and 14 countries were affected.
• Sea waves rose to over 100 feet.
• The overall death toll from the 14 countries was over 2.25 lakhs.
• More than ten thousand people lost their lives in India itself.
• Several people including children died in Kerala

4. Name the monsoon seasons which are experienced in Kerala
Answer: South West Monsoon and North East Monsoon

5. How did the floods caused by the torrential rains in August 2018, affect the lives of the people in Kerala?
Answer:
• The rains that lashed Kerala between June 2018 and August 2018 were much more than normal.
• This caused considerable flooding in 13 out of the 14 districts.
• The damage and destruction caused by the floods in 2018 can never be really estimated.
• It had a devastating effect on all the sectors.
• It took away hundreds of lives.
• The land, environment as well as lifeforms including man were subjected to flood.
• The agricultural sector was wholly affected by the floods.

6. Make a note of water reservoirs in Kerala
Answer:
• There are 57 large dams in Kerala.
• Four of them are under the control of Tamilnadu.
• The total active water holding capacity of all these dams together is 5.806 b cm (Billion Cubic Metres).
• It is just 7.4% of the total discharge in all 44 rivers together
• Only 7 out of the 57 reservoirs have 0.20 b cm storage capacity.
• These reservoirs have 74% active storage capacity of the total water capacity.

7. Name the major water reservoirs in Kerala
Answer: Idukki, Idamalayar, Kallada, Kakki, Parambikkulam (for the use of Tamilnadu), Mullaperiyar (for the use of Tamilnadu), Malampuzha.

8. How the reservoirs helped the management of water, during the floods in 2018?
Answer:
• The discharge of water to the reservoirs following these rains was beyond their capacities.
• The discharged water raised the water to dangerous levels in the reservoirs.
• To manage the excess water in the reservoirs, 37 dams were opened.
• All five shutters of the Idukki Dam were opened after a gap of 26 years.

9. Elucidate the situations leading to landslides in Kerala
Answer:
• The topography of Kerala is in such a way that it slopes from East to West.
• Numerous hills and steep mountains are situated here.
• Most of these places are ecologically fragile.

10. How did the floods in 2018 affect the agricultural sector of Kerala?
Answer:
• The agricultural sector was wholly affected by the floods.
• 10.80 lakh farmers were directly affected.
• Crops over 2,36,650 hectares were destructed.
• 51,194 hectares of agricultural land were filled with garbage and other wastes brought down by the flood water. It negatively affected 535 lakh farmers.
• The crops such as pepper, cardamom, paddy, plantain and vegetables were severely affected by the floods.

11. The South West monsoon of 2018 affected Kerala in three stages. Which were they?
Answer:
• Stage 1, from 29 May to 8 July (272 houses were fully destroyed and 6782 houses were partially damaged)
• Stage 2, from 9 July to 7 August (201 houses were fully destroyed and 5904 houses were partially damaged)
• Stage 3, from 8 August (12235 houses were fully destroyed and 1,18,075 houses were partially damaged)

12. Relief camps accommodating individuals and families from different situations may turn into centres of turmoil in many parts of the world. Why?
Answer:
• Clashes for food
• Problems related to drinking water and pollution
• Create complexities.

13. Relief camps turned into model centres of humanity. Comment on the statement.
Answer: In Kerala, each relief camp turned into model centre of humanity where people shared their difficulties, damages and losses as a single family.

14. It is the humanitarian face for survival that we experienced in Kerala during the floods. Justify
OR
How did your society participate in rescue operations during the floods?
Answer:
• The public establishments including the schools provided asylum to those rushing out of their drowning houses.
• The local people, their representatives, as well as the officials, helped them.
• As the flood rose to uncontrollable limits Army, Navy and Air force swing into action.
• Different departments and officials under the Government of Kerala worked hard throughout day and night.
• It was the fishermen who served as active lifesavers by tackling the flood differently.
• The Kerala society acknowledged them by mentioning them as 'the own army’ of Kerala who defeated the flood.
• The people from unaffected regions helped the worst sufferers in cash and kindness by avoiding Onam celebrations.
• The Keralites from all over the world stood with a single mind to help the sufferers.
• Kerala youth was noticeable in rescue operations, and relief camps, as well as in the collection and warehousing of resources to sufferers.

15. Find out the different reasons for the occurrence of floods in Kerala?
Answer:
• Reclaiming the paddy fields for other purposes
• The filling of low-lying regions on a large scale obstructs the percolation of water which in turn causes floods.
• Activities like massive demolition of hills, rock quarrying, and sand mining from rivers may lead to negative environmental impacts.
• Unscientific land-use
• Considerable decline of natural forests and transformation of forests to crops has caused soil erosion.
• Human interventions and construction activities in the ecologically fragile zones

16. What are the precautionary measures to be taken to prevent floods and landslides from becoming disasters?
Answer:
• It is essential to create environmental awareness in people.
• Must give scientific environmental education from childhood itself
• Each one of us is bound to obey the existing rules.
• The side walls around the houses will be built with bio-fencings with bush plants instead of those with bricks and cement.
• The people of Kerala must be provided with the awareness and skill to go on with the development activities without causing much harm to the natural environment.
• By nurturing such a culture we can check natural calamities from becoming severe disasters.

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