The primary natural hazard faced by Arunachal Pradesh is a) Earthquakes.
Arunachal Pradesh is located in a seismically active region, and is prone to earthquakes of varying magnitudes. The state has experienced several major earthquakes in the past, including the 1950 Assam earthquake, which had a magnitude of 8.6 and caused widespread damage and loss of life.
Earthquakes can cause a variety of hazards, including ground shaking, landslides, and liquefaction. Ground shaking can damage buildings and infrastructure, and can also cause injuries and deaths. Landslides can occur when the ground is shaken, and can block roads and railways, and can also damage or destroy buildings. Liquefaction is a process in which loose, saturated soil behaves like a liquid, and can cause buildings to sink or collapse.
Arunachal Pradesh has taken a number of measures to mitigate the risks posed by earthquakes, including building codes, early warning systems, and disaster preparedness plans. However, the state remains vulnerable to earthquakes, and it is important for residents to be aware of the risks and to take steps to protect themselves.
The other options are not the primary natural hazard faced by Arunachal Pradesh.
- Floods are a secondary natural hazard faced by Arunachal Pradesh. The state is located in a mountainous region, and is prone to flash floods. Flash floods can occur when heavy rains cause rivers to overflow their banks, or when landslides block rivers. Flash floods can cause damage to property and infrastructure, and can also lead to injuries and deaths.
- Cyclones are a tertiary natural hazard faced by Arunachal Pradesh. The state is located in a cyclone-prone region, but cyclones are rare in the state. When cyclones do occur, they can cause damage to property and infrastructure, and can also lead to injuries and deaths.
- Droughts are a quaternary natural hazard faced by Arunachal Pradesh. The state is located in a humid subtropical climate, and droughts are rare in the state. When droughts do occur, they can cause damage to crops and livestock, and can also lead to water shortages.