Occurrence of natural hazards is affected by: (a) Land use changes (b) Drainage and construction (c) Ozone depletion (d) Climate change Choose the correct answer from the code given below:
(a), (b) and (d)
To determine the correct options that affect the occurrence of natural hazards, let's evaluate each choice:
- Land use changes: These are significant because altering land use can lead to deforestation, urbanization, and habitat destruction, which can exacerbate natural hazards like floods and landslides. Therefore, land use changes can indeed affect natural hazards.
- Drainage and construction: Improper drainage systems and construction practices can increase the risk of floods and landslides. Blocking natural waterways and unstable construction can contribute to these hazards. Therefore, drainage and construction do play a role in the occurrence of natural hazards.
- Ozone depletion: This environmental issue primarily affects the atmosphere by allowing more ultraviolet radiation to reach the Earth but does not directly cause natural hazards such as earthquakes, floods, or landslides.
- Climate change: It is a crucial factor that affects natural hazards. Changes in climate can lead to more extreme weather events, such as hurricanes, wildfires, and floods. Hence, climate change significantly affects the occurrence of natural hazards.
Based on this analysis, options (a), (b), and (d) are directly related to the occurrence of natural hazards. Therefore, the correct answer is:
(a), (b) and (d)
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Assertion “A”: Mapping of landslide prone areas and construction of houses, falling of trees and grazing in landslide prone areas should be prohibited.
Reason “R”: Afforestation in the vulnerable areas is an effective way of durable landslides control.
Choose the correct code:
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Important Questions from Hazards and Disasters
Which one of the following is a meteorological hazard?
Consider the following features related to a glacial lake outburst flood (GLOF):
a. Involves sudden release of meltwater
b. Failure of moraine and ice dam
c. Large downstream discharge causing floods
d. Rapid event casting for few seconds
Select the correct answer from the options given below:
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List-I
(Emitter)
List-II
(Emitted Products)
A. Decaying plants
1. Carbon monoxide
B. Volcanoes
2. Salt spray
C. Ocean
3. Hydrogen sulphide
D. Forest fires
4. Sulfur oxides
Who is the Executive Head of the National Disaster Management Authority (NDMA)?
Which of the following is perceived relatively a low-risk problem in the context of human welfare?
