27 Apr 2022

Samacheer Kalvi 7th Geography Term 3 Unit 3 Answers

Samacheer Kalvi 7th Geography Term 3 Unit 3 Book Back Questions and Answers:

Samacheer Kalvi 7th Standard Social Science Book Back 1 Mark and 2 Mark Question & Answers uploaded online and available PDF for free download. Class 7th New Syllabus Social Science Term III book back question & answer solutions guide available below for English Medium. TN Class 7 Social Science Geography Book Term 3 Unit 3 – Natural Hazards – Understanding of Disaster Management in Practice Solutions are provided on this page. Students looking for Samacheer Kalvi 7th Geography Term 3 Unit 3 Questions and Answers can check below.

We also provide class 7th other units Book Back One and Two Mark Solutions Guide on our site. Students looking for a new syllabus 7th standard Social Science Term 3 Unit 3 Natural Hazards – Understanding of Disaster Management in Practice Book Back Questions with Answer PDF:

For all three-term of 7th standard Social Science Book Back Answers English Medium – Samacheer kalvi 7th Social Science Book Back Answers




Samacheer Kalvi 7th Social Science Geography Book Back Unit 3 Term 3 Solution Guide PDF:

Social Subject 1 Mark and 2 Mark Solutions Guide PDF available below. Click the Download option to download the book back 1 Mark & 2 Mark questions and answers. Take the printout and use it for exam purposes.

Geography – Term 3

Unit 3 – Natural Hazards – Understanding of Disaster Management in Practice

I. Choose the correct answer:

1. _________ is an event that causes enormous physical damage to property, loss of life, and change in the environment.
(a) Hazard
(b) Disaster
(c) Recovery
(d) Mitigation
Answer: (a) and (b)

2. Activities that reduce the effects of a disaster
(a) Preparation
(b) Response
(c) Mitigation
(d) Recovery
Answer: (c) Mitigation

3. A sudden movement (or) trembling of the earth’s crust is called an _________
(a) Tsunami
(b) Earthquake
(c) Fire
(d) Cyclone
Answer: (b) Earthquake

4. A sudden overflow of water in a large amount caused due to heavy rainfall is called _________
(a) Flood
(b) Cyclone
(c) Drought
(d) Seasons
Answer: (a) Flood

5. Road accidents can be avoided by permitting the persons who have is _________ allowed to drive vehicle
(a) Ration card
(b) License
(c) permission
(d) Documents
Answer: (b) License

II. Fill in the blanks:

  1. A hazard is a ______ event that can cause harm or damage to a human and his property
  2. Activities taken during a disaster are called ______
  3. Displacement of water can produce one or more huge destructive waves known as ______
  4. In case of fire accidents call the nearby police station or the no ______ for the fire service.
  5. Disaster management refers to ______ of lives and property during a natural or man-made disaster.

Answer:

  1. dangerous
  2. Disaster management
  3. Tsunami
  4. 101
  5. conservation

III. Match the following:

Earthquake Gigantic waves
Cyclone Creak / Fault
Tsunami Uneven rainfall
Industrial accident Eye of the storm
Drought Carelessness

Answer:

Earthquake Creak / Fault
Cyclone Eye of the storm
Tsunami Gigantic waves
Industrial accident Carelessness
Drought Uneven rainfall




IV. Consider the following statement and tick the appropriate answer:

1. Assertion (A): In the modern world we can’t live happing ever day.
Reason (R): Due to pollution and environmental degradation we are undergoing natural hazards and Disasters.
(a) A and R are correct and A explains R
(b) A and R are correct but A does not explain R
(c) A is not correct but R is correct
(d) Both A and R are incorrect
Answer: (b) A and R are correct but A does not explain R

2. Assertion (A): Sudden movement (or) trembling of the earth’s crust is called an Earthquake.
Reason (R): Movement of the tectonic plates, mass wasting, surface fault all leads to earthquake
(a) A and R are correct and A explains R
(b) A and R are correct but A does not explain R
(c) A is incorrect but R is correct
(d) Both A and R are incorrect
Answer: (b) A and R are correct but A does not explain R

V. Answer the following briefly:

1. Define Hazard.
Answer:
A hazard is a dangerous phenomenon, substance, human activity, or condition that may cause loss of life, injury, health impacts, property damage, loss of livelihoods, services, social and economic disruption, or environmental damage.

2. What is a disaster?
Answer:
A disaster can be generally defined as “A serious disruption in the society causing widespread material, economic, social or environmental losses which exceed the ability of the affected society to cope using its own resources”.

3. What are the six concepts of the Disaster management cycle?
Answer:
Preparation, Mitigation, Preparedness, Response, Recovery, and Development are the six Disaster management cycles.

4. Name any two agencies which involve in the warring system in Tamil Nadu.
Answer:

  1. TNSDMA
  2. DDMA
  3. SDRF

5. Write about any three effects of the flood.’
Answer:
Effects:

  1. Loss of life and property,
  2. Displacement of people and
  3. Spread of contagious diseases such as cholera and Malaria etc.,

6. Give any four Rail safety tips.
Answer:

  1. Stay alert. Trains can come from either direction at any time,
  2. Never sit on the edge of the Station Platform,
  3. Cross the tracks safely.

7. Name any four different industries which go under industrial disasters frequently.
Answer:
Defense, Energy, Food, and Mining.

VI. Distinguish between:

1. Earthquake and Tsunami.
Answer:

S. No Earthquake Tsunami
1. A sudden movement or trembling of the earth’s crust is called as an earthquake. Huge destructive waves result in the displacement of water.
2. It is caused due to movement of tectonic plates, mass-wasting landslides, surface faults, etc. It is caused due to underwater earthquakes.
3. It’s after math that leads to loss of property, damage to buildings, and loss of life. It causes flooding and disrupts transportation power communication and water supply.

2. Flood and cyclone.
Answer:

S.No Flood Cyclone
1. Sudden overflow of water in a large amount due to heavy rainfall, cyclone, melting of snow, Tsunami, or cloud/ dam burst. A low-pressure area that is encircled by high-pressure wind is called a cyclone.
2. It causes loss of life and property and leads to the spread of diseases such as cholera, and malaria. Effects include heavy rain strong wind, and landfall leading to damage to life and property.

3. Hazard and disaster
Answer:

S.No Hazard Disaster
1. A dangerous phenomenon, substance, human activity, or condition that may cause loss of life, injury, health impacts, and social and economic disruption. A disaster can be generally defined as “A serious disruption in the society causing widespread material, economic, social or environmental losses which exceed the ability of the affected society to cope using its own resources”.
2. Hazards are geophysical and biological. Disasters are Natural and man-made.

Other Important Links for 7th Std Social Science Book Back Solutions:

Tamil Nadu Class 7th Standard Book Back Guide PDF, Click the link – 7th Book Back Questions & Answers PDF

For all three-term of 7th standard Social Science Book Back Answers English Medium – Samacheer kalvi 7th Social Science Book Back Answers




Leave a Reply

Your email address will not be published. Required fields are marked *