Social Science STD 7 Chapter 13: Disaster Management - Exercises

1. Fill in the blanks:

1. 1. Disasters are commonly known as calamity, happening or .........

   catastrophes

2. 2. Vicious/wanton atmospheric storm is known as hurricane or .........

   cyclone

3. 3. Destructive waves created by earthquakes at the bottom of the ocean are known as .........

   Tsunami

4. 4. Bicycle should be ridden on the ......... side of the road.

   left

2. Match the following:

3. Answer the following questions in one-two sentences each:

1. 1. Give any four names of the natural disasters.

   Four natural disasters are earthquake, flood, tsunami, and drought.

2. 2. What is a Cyclone?

   A cyclone is an enormous atmospheric storm that arises from the conditions of an imbalance in atmospheric air pressure. It causes heavy destruction and havoc wherever it strikes.

3. 3. Which are the reasons responsible for floods?

   Floods are caused by continuous rain or a deluge. Other reasons include human-made constructions that neglect natural slopes and the obstruction of natural drainage systems.

4. 4. How many types of traffic signs are there? Name them.

   There are three types of traffic signs: Mandatory signs, Warning signs, and Informatory signs.

4. Answer the following questions:

1. 1. What precautions should be taken during the earthquake?

   During an earthquake, you should stay calm and not panic. If you are indoors, you should sit under a sturdy piece of furniture like a bench or a table. You should stay away from electric poles and wires. It is also important not to use an elevator in tall buildings and to get authentic news from the radio or TV. You should not switch on gas or electricity without making sure it is safe to do so.

2. 2. State the effects of disasters.

   Disasters cause immense loss of life and property. They can also lead to long-term problems, as it takes years to reconstruct roads, houses, and public amenities. People who lose loved ones or become permanently disabled face deep sadness, depression, and significant rehabilitation challenges. The poor and needy are often the most affected by disasters, and their lives and economy suffer greatly.

3. 3. What are the difficulties faced in the cities while passing through areas with heavy vehicular traffic? Describe your experience.

   When passing through areas with heavy vehicular traffic, there are many difficulties, such as traffic congestion, which leads to long delays. The constant honking and noise from vehicles can cause noise pollution. The fumes from vehicles contribute to air pollution. Pedestrians face a higher risk of accidents, and the overall experience is stressful and time-consuming. The text mentions that road accidents have dangerous effects on Indian life and economy.