Page 1 : 2nd Proof, , Standard, , 13, , : 7 | Social Science, , Disaster Management, Disasters, , 1., , Disasters are commonly known as calamity, happenings or catastrophes. ***, , 2., , How are disasters categorised?, , A., , Disasters are divided into two categories: (1) natural disasters and (2) man-made disasters., , 3., , Which of the following disasters is not a man-made disaster?, (A) Industrial accidents (B) Bomb blasts, , (C) Forest fire, , (C), (D) Riots, , 4., , Give any four names of the natural disasters. ***, , A., , Natural disasters: Earthquake, Volcano, Drought, Forest fire, Flood, Tsunami, Hurricane(Cyclone),, etc., , 5., , Which of the following is a man-made disaster?, (A) Riots, , (B) Volcanoes, , (A), (C) Drought, , (D) Flood, , 6., , Both natural and man-made disasters are destructive and damaging. ( or ), , ( ), , 7., , Which of the following is a predictable disaster?, , (D), , (A) Earthquake, , (B) Volcano, , (C) Cyclone, , (D) All of these, , 8., , Forecast of tsunami and droughts is not possible. ( or ), , (), , 9., , Which disaster cannot be forecasted?, , (A), , (A) Earthquake, , (B) Flood, , (C) Cyclone, , 10., , Forecasting of forest fires is possible. ( or ), , 11., , Match the following:***, A, , 12., A., , B, , (D) All of these, (), , Answers, , (1) Earthquake, , (A) can be predicted., , (1) – B, , (2) Flood, , (B) cannot be predicted., , (2) – A, , Write a short note on disasters.,  Disasters are also commonly known as a calamity, happenings and catastrophes. Experts in, , disaster management have divided disasters into two parts:, (1) Natural Disasters and (2) Man-made Disasters.,  Natural Disasters: Disasters caused by nature are called natural disasters. For e.g. earthquakes,, , volcanoes, wildfires, floods, tsunamis, droughts, hurricanes, etc. Of these, earthquakes, volcanoes, , I am ‘Confident’... I am a Change Maker., , 43

Page 2 : 2nd Proof, , Chapter 13 : Disaster Management, and volcanoes cannot be predicted. While floods, tsunamis, droughts, hurricanes, etc. can be, predicted. Casualties can be averted in predictable disasters.,  Man-made disasters: Disasters which are caused by humans or due to human actions are called, , man-made disasters. For e.g. fires, industrial accidents, bombings, riots, etc., Earthquake, 13., A., , What is an earthquake?, A vibration experienced on the earth's surface is called an earthquake. A geological process that, takes place in the earth's crust is responsible for this phenomenon., , 14., , 15., , What would you do if an earthquake happened while you were in the classroom?, (A) Sit under the bench., , (B) Run, , (C) Shout, , (D) Go under the trees in the ground., , (A), , An elevator should not be used during an earthquake to get down from tall buildings., ( or ), , (), , 16., , We should take shelter near electric poles or wires during an earthquake. ( or ), , (), , 17., , What precautions should be taken during an earthquake?***, , A., , The following precautions should be taken during an earthquake:, (1) If we are in a school classroom, we should sit under a table or bench., (2) Stay away from electric poles and wires., (3) To know the true news about the earthquake listen to the radio and TV., (4) Do not be drawn by rumors., (5) Not to shout and panic., (6) An elevator should not be used during an earthquake to get down from tall buildings., (7) Not to switch-on devices like gas or electricity in the house without surity., , 18., , On June 16, 1819, an earthquake of intensity 8.2 shook Kutch in Gujarat., , 19., , On July 12, 1975, Anjar experienced an earthquake. ( or ), , (), , 20., , An earthquake of intensity 7.6 / 7.7 occurred in Kutch on ____________., , (D), , (A) August 15, 2010, , (B) January 26, 2008, , (C) August 28, 2000, , (D) January 26, 2001, , Cyclone, 21., A., 44, , What is a Cyclone?***, Enormous atmospheric storms arise from the conditions of an imbalance in the atmospheric air, I am ‘Confident’... I am a Change Maker.

Page 3 : 2nd Proof, , Standard, , : 7 | Social Science, , pressure is known as a hurricane or cyclone., 22., , Vicious/wanton atmospheric storm is known as a hurricane or cyclone.***, , 23., , Where are the destructive effects of cyclones experienced in India?, , A., , The destructive effects of cyclones are experienced in the East coast of India, Malabar Coast and in, the coast of Kutch and Saurashtra in Gujarat., , 24., , Which of the following should not be done when a cyclone warning is received?, , (B), , (A) Close the doors and windows of the house. (B) Should go out., (C) Turn off electricity and gas., 25., , (D) Moving to a higher area away from the sea., , Which of the following should be done during a cyclone?, , (D), , (A) Do not take shelter under hoardings or trees., (B) Close the doors and windows of the house., (C) Follow strictly the instructions of the management of the rescue centres., (D) All of these, 26., , 27., A., , What would you do if there is a hurricane while you are at school?, (A) Go home, , (B) Run, , (C) Sit quietly in the classroom, , (D) Shout, , (C), , What should be done before a cyclone?, Before a cyclone following things should be taken care of:,  Accurately know the details of the cyclone-prone areas.,  Migrate according to the instructions of the department.,  If you are in a low-lying area, near the sea, go to the high-lying areas.,  Keep food, torch, drinking water, clothes, radio, necessary medicine ready.,  Turn off the electricity and gas connections.,  Listen to the radio for accurate information., , 28., A., , What should be done during a cyclone?, During cyclones following precautions should be taken care of:, , , Close the doors and windows on getting the warning., ,  If you are in the school, don't go out of the classroom.,  If you are in the vehicle, park it away from the electric pole, tree, and away from and remain, , inside the vehicle.,  Follow strictly the instructions of the management of the rescue centres.,  Relieve animals from hooks. If they are released they can save themselves., I am ‘Confident’... I am a Change Maker., , 45

Page 4 : 2nd Proof, , Chapter 13 : Disaster Management,  Do not take shelter under hoarding or trees., , 29., A., , What to do after a cyclone?, After a cyclone, the following actions should be taken:,  Don't go out, even though the weather seems clear and the winds are off. Sudden wind and rain, , may occur.,  Stay away from hanging and open wires.,  Don't be an obstacle in relief and rescue work by gathering with curiosity.,  Return home only after getting instruction from the department.,  Be helpful in relief and rescue work.,  Do not make phone-calls except call for help. Due to unnecessary calling the network will disrupt, , and rescue work also gets disturbed., Tsunami, 30., , Destructive waves created by earthquakes at the bottom of the ocean are known as Tsunami. ***, , 31., , Explain: Tsunami, , A., , The Tsunami is a catastrophic wave caused by an earthquake or volcanic eruption at the bottom of, the sea or ocean or by a large-scale landslide in the ocean. The tsunami is caused by an earthquake, at the bottom of the ocean., , 32., , Seismic ocean waves are known as tsunamis. ( or ), , 33., , What changes take place in tsunami waves from their place of origin to the shore?, , A., , ( ), , When Tsunami waves come to the shore extending in the curved shape from their place of origin,, they become more destructive. As its speed decreases along the shore, it assumes higher altitude., The shoreline becomes a wall of water and moves ahead resulting in scary destruction., , 34., , 35., , Tsunami cannot be estimated even with the help of modern satellite-based equipment., ( or ), , (), , In which ocean did the tsunami cause catastrophic damage on December 26, 2004?, , (B), , (A) Pacific Ocean, , (B) Indian Ocean, , (C) Atlantic Ocean, , (D) Arctic Ocean, , 36., , One should try to watch a tsunami. ( or ), , (), , 37., , Which of the following must not be done during a tsunami?, , (A), , (A) Should take shelter in tall buildings along the coast., (B) Migrate to a place far from the sea., (C) Follow the instructions on the radio., 46, , (D) Carry essential goods., , I am ‘Confident’... I am a Change Maker.

Page 5 : 2nd Proof, , Standard, 38., A., , : 7 | Social Science, , Write a short note on tsunamis.,  The Tsunami is a catastrophic wave caused by an earthquake or volcanic eruption at the bottom, , of the sea or ocean or by a large-scale landslide in the ocean. The tsunami is caused by an, earthquake at the bottom of the ocean.,  When Tsunami waves come to the shore extending in the curved shape from their place of, , origin, it becomes more destructive. As its speed decreases along the shore, it assumes higher, altitude. The shoreline becomes a wall of water and moves ahead resulting in scary destruction.,  With the help of modern satellite-based equipment, an accurate estimate of the tsunami can be, , made so that people from the affected area can be shifted timely and casualties can be prevented., At the same time, it is a fact that all the countries do not have such technology or equipment., 39., A., , What are the precautions that should be taken before a tsunami?, As soon as the news of tsunami warning is received one should follow the following measures:,  Move away from the seashore.,  Act according to the instructions given on radio, television, or social media.,  If the wave of the sea rises abnormally strange sounds are heard, these are pre-warning signs so, , immediately move away from the shore.,  Keep valuable items, food, drinking water, medicine, torch, etc. ready., , 40., A., , What precautions should be taken during a tsunami?, Precautions to be taken during a tsunami are follows:,  Don't leave high-lying places.,  Don't try to watch the tsunami.,  Strictly follow the instructions given by the department.,  Even high-rise buildings on the shore are not safe shelters. So avoid going there., , 41., A., , What will you do after a tsunami?, After a tsunami, one should:,  Act according to the correct details that come on radio, television, or social media.,  Move to vacated areas, after getting instructions from the department. Sometimes, higher waves, , may come afterwards.,  If you are not sure about the safety of your house, don't enter.,  Report about the breakdown of water, gas or electricity connection to the department., , I am ‘Confident’... I am a Change Maker., , 47

Page 6 : 2nd Proof, , Chapter 13 : Disaster Management, , Flood, 42., A., 43., A., , What is a flood?, Due to continuous rain or deluge, large waterlogged areas are known as floods., Which are the reasons responsible for floods?***, The causes of floods are excessive rainfall, man-made constructions made by neglecting natural, slopes, obstruction of natural drainage, etc., , 44., , The flood event is usually associated with the river., , 45., , During floods we should relieve the animals from hooks. ( or ), , 46., , One should be aware of the infestation of scorpions and snakes after floods., , 47., , What precautions should be taken before a flood?, , A., , ( ), , Precautions should be taken before a flood are as follows:,  Be aware of flood-prone areas at the local level.,  Keep information of high areas and migrate there during the flood.,  Act according to the warning given by the flood department., , 48., A., , What precautions will you take during the flood?, Precautions that should be taken during the flood:,  Turn off the connections of gas and electricity to the house.,  When your vehicle gets stuck in the flood, immediately move out of it and form a group of 7 to, , 8 people, hold one another's hand and try to move out of the flow.,  Relieve animals from hooks. If they are released they can save themselves., , 49., , Food made from flood water should not be eaten., , 50., , What are the precautions that should be taken after a flood?, , A., , Precautions to be taken after a flood:,  Don't eat food that is made from floodwater.,  Use boiled water. Don't go out without knowing that the roads are open.,  Beware of the infestation of snakes and scorpions., , Drought, 51., , Drought is a natural disaster that is destructive and leaves its bad effect for a long time., , 52., , Drought is a catastrophe linked with water and food. ( or ), , 48, , I am ‘Confident’... I am a Change Maker., , ( )

Page 7 : 2nd Proof, , Standard, 53., , Decreased rainfall results in extreme scarcity of water. What is this situation called?, (A) Tsunami, , 54., A., , : 7 | Social Science, , (B) Drought, , (C) Flood, , (B), , (D) Cyclone, , What are the problems caused by drought?, In the situation of drought, agriculture and the ecosystem suffer a lot due to lack of water and the, problem of food grains for human beings and fodder problem for domestic animals are created., Earlier heavy casualties used to occur because of starvation in drought but in modern time, with, proper management, casualties can be prevented., , 55., A., , What steps should be taken before the drought?, Steps to be taken before the drought are as follows:,  Plan according to the available quantity of water, promote drip irrigation.,  Introduce a rationing system for the grains.,  Prohibit banquet to prevent wastage of the grains., , 56., , What steps should not be taken during a drought situation?, , (C), , (A) Distribute food grains at subsidised rates., (B) Construction should be stopped., (C) To hold banquets., (D) Prevent food hoarding., 57., , What steps should be taken during a drought?, , A., , Steps to be taken during the drought are as follows:, , , To arrange the distribution of the food grains at subsidised rates., ,  Stop the construction work except urgency.,  Take preventive measures against hoarding of grains and fodder., , 58., , What steps should be taken after a drought?, , A., , Steps to be taken after the drought are as follows:,  Give priority to future plans of water harvesting work.,  Plan for buffer stock of the grains.,  To connect the rivers to stop the water flowing into the oceans., , Effects Of Disaster, 59., A., , State the effects of natural disasters.***, The effects of disasters are as follows:,  Disasters like an earthquake, flood, tsunami, hurricane, cause huge loss of life and property at a, I am ‘Confident’... I am a Change Maker., , 49

Page 8 : 2nd Proof, , Chapter 13 : Disaster Management, large scale.,  It takes years to reconstruct roads, houses, and public amenities in disaster affected areas.,  Families who have lost their loved ones during a disaster, are deeply saddened and depressed., , 60., , , , Families who have lost their breadwinners face great problems., , , , In a disaster, people who become permanently disabled, have a severe problem of rehabilitation., , The worst effect of disasters is seen on poor and needy people., , , , 50, , I am ‘Confident’... I am a Change Maker.