Pyroclastic flows are high-density mixtures of hot, dry rock fragments and hot gases that move away from the vent that erupted them at high speeds.

The drainage channels then overtop their natural or artificial banks and water enters the surrounding lands to cause flooding. Also human activities, which damage the environment, for example, sand mining, deforestation and poor garbage disposal, increase the risk of flooding.

Which of the following best explains how a hurricane can increase an area’s susceptibility to future storms? Erosion caused by hurricanes can leave coasts more exposed to storms.

Answer Expert Verified The choice that best explains why deforestation increases the risk of floods in an area is letter D: Tree roots improve soil water retention. Tree roots’ function is to absorb the water from the soil because it uses this water as his food to sustain its plant functions.

According to recent researches it is very likely that human activities will impact future catastrophes, like earthquakes, storms, floods, landslides, also because population growth and urbanization make communities much more vulnerable to natural hazards.

Man-made disasters have an element of human intent, negligence, or error involving a failure of a man-made system, as opposed to natural disasters resulting from natural hazards. Such man-made disasters are crime, arson, civil disorder, terrorism, war, biological/chemical threat, cyber-attacks, etc.

Man-made disasters are classified into technological disasters, transportation accidents, public places failure, and production failure. The paper presents a comparison between the main types of disasters. Findings – Disasters are classified into three types: naturals, man-mades, and hybrid disasters.

Man-made pollution is generally a byproduct of human actions such as consumption, waste disposal, industrial production, transportation and energy generation.

Resistant tuberculosis is aman made disaster due to negligence of patients, physicians, and policy makers.

Ten deadliest natural disasters by highest estimated death toll excluding epidemics and famines

Natural Disasters Geophysical (e.g. Earthquakes, Landslides, Tsunamis and Volcanic Activity) Hydrological (e.g. Avalanches and Floods) Climatological (e.g. Extreme Temperatures, Drought and Wildfires) Meteorological (e.g. Cyclones and Storms/Wave Surges) Biological (e.g. Disease Epidemics and Insect/Animal Plagues)

Types of disasters usually fall into two broad categories: natural and man-made.

Natural hazards are naturally occurring physical phenomena caused either by rapid or slow onset events which can be geophysical (earthquakes, landslides, tsunamis and volcanic activity), hydrological (avalanches and floods), climatological (extreme temperatures, drought and wildfires), meteorological (cyclones and …

The new classification distinguishes two generic disaster groups: natural and technological disasters. The natural disaster category being divided into six disaster groups: Biological, Geophysical, Meteorological, Hydrological, Climatological and Extra-Terrestrial.

Biological disasters might be caused by epidemics, accidental release of virulent microorganism(s) or Bioterrorism (BT) with the use of biological agents such as anthrax, smallpox, etc.

Causes of Biological Disasters: These unsustainable farming to spread of diseases affecting both people and animals, loss of wildlife habitat due to encroachments and illegal wildlife trades. Zoonotic Diseases: Zoonosis diseases are transmissible from animals to humans and vice versa.

Biological disasters are natural scenarios involving disease, disability or death on a large scale among humans, animals and plants due to micro-organisms like bacteria, or virus or toxins.

Biological disasters are natural scenarios involving disease, disability, or death on a large scale among humans, animals, and plants due to micro-organisms like bacteria, or viruses, or toxins. In this article, you can read all about biological disaster management in India for IAS Exam.

Ministry of Health and Family Welfare is the nodal ministry for handling epidemics, decision making, advisory body and emergency Medical Relief provider. Health being the state subject, the primary responsibility of dealing with biological disasters rests with the state government.

Introduction. Every disaster deployment has some type of chemical, biological, radiation, nuclear, or explosion (CBRNE) hazard. CBRNE hazards include more than military weapons; they also include endemic diseases, epidemics, industrial chemicals, explosion hazards, pollution, and terrorist threats.