Tag: tsunami and floods

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Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

In Assam, floods are caused by two river systems- the mighty Brahmaputra in the north and Barak in the _______.

  1. East

  2. West

  3. South

  4. North-West
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Brahmaputra river flows through the northern part of Assam, while the Barak river system is located in the southern part of the state.

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

The state prone to floods is  ___________.

  1. Rajasthan

  2. Madhya Pradesh

  3. Assam

  4. Delhi
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Assam is the state prone to flood in India. Area prone to flood in Assam is 3.15 million hectares. Assam faces frequent flood problem because it lies on the basins of Brahmaputra and Barak rivers. 

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

The river that is known as the "Sorrow of Bihar" is ______.

  1. Kosi.

  2. Mahanadi.

  3. Godavari.

  4. Krishna.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The Kosi River is known as the "Sorrow of Bihar" as the yearly floods influence around 21,000 sq km of fertile farming grounds in this way disturbing the rural economy. Floods claim numerous thousand of life of Human and Cattle.
Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

Which of the following is an environmental consequence of floods?

  1. Dispersal of weed species

  2. Erosion of soil

  3. Release of pollutants into waterways

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Floods can have negative environmental consequences, such as soil erosion, release of pollutants and excess sediments into waterways and the ocean, dispersal of weed species, and negative impacts on fish and other aquatic life. Floods can also have positive environmental consequences, such as recharging groundwater systems, filling wetlands, moving useful nutrients around the landscape, and triggering breeding events (for example, of water birds).

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

Which of the following can reduce flood risk?

  1. Building regulations

  2. Dams and detention basins

  3. Awareness programme

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Flood risk in new developments can be reduced by restricting the location of development (zonings) and placing controls (regulations) on development. In existing developed areas, risk can be reduced by modifying flood behaviour (for example, through dams, detention basins, levees, waterway modifications), property modification measures (for example, land filling, flood proofing, house raising, removing developments), and response modification measures (for example, upgrading flood evacuation routes, flood warnings, flood evacuation planning, flood education programs).

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

Which of the following statements is true about flood warning?

  1. Should not be released until information is certain

  2. Should indicate what the threat is, what action should be taken, by whom and when

  3. It should come be a single source

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Flood warnings should provide information on what the threat is, what action should be taken, by whom and when. While it is desirable for flood warnings to be accurate, warnings are predictions about the future, so there is inevitably some uncertainty. Accuracy needs to be balanced with timeliness, to allow enough time for appropriate action. Warnings are most likely to reach different audiences and to be heeded if they come from multiple trusted sources.

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

Which of the following reasons is expected to increase the risk of flooding?

  1. Population growth

  2. Urbanisation

  3. Climate change

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the future, climate change is likely to result in an increased chance of flash floods and coastal inundation. Australia’s growing population and urbanization are likely to place increased pressure on our waterways and to increase the chance of flooding in cities and the number of properties and people exposed to floodwaters.

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

Which among the following defines probable maximum flood?

  1. Maximum flood occurred in last 100 years in the area

  2. Maximum flood occurred in last 1000 years in the area

  3. An estimation of the largest possible flood that could occur at a particular location

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Probable Maximum Flood (PMF) is an estimate of the largest possible flood that could occur at a particular location, under the most severe meteorological and hydrological conditions as they are currently understood.

Multiple choice social studies precautions for natural disasters floods, droughts and landslides and cyclones major hazards in india and prevention tsunami and floods

The major flood prone areas of India cover almost what percentage of the country's area?

  1. 12.5%

  2. 13.5%

  3. 14.5%

  4. 15%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Approximately 12.5% of India's total geographical area is considered prone to floods. This is a standard statistic used in Indian disaster management studies.