Easy
Normal
Hard
Very Hard
Impossible
100
A wave of sand
Sandstorm (Dust Storm)
100
The introduction of harmful materials to the world
Global Pollution
100
When Gasoline leaks from the gas tank of the vehicle
Fuel Leak
100
When Radioactive waste is exposed to humanity
Chemical Leak
100
When a tornado of dirt arises
Landspout
200
A period of time where it is too cold
Cold Wave
200
When A Nuke Detonates
Nuclear Explosion
200
A Tornado created by fire
Fire Whirl
200
Unpleasant and often unhealthy smoke and gases that are produced by fires
Toxic Fumes Release
200
The layer of a star that lies just outside the core, to which radiant energy is transferred from the core in the form of photons
Radiative Zone 
300
When A nearby volcano is active
Eruption
300
A trace gas that plays an integral part in the greenhouse effect, carbon cycle, photosynthesis and oceanic carbon cycle.
CO2 Gas
300
When hot pillars of steam rise
Steam Devil
300
A system producing severe thunderstorms and featuring rotating winds sustained by a prolonged updraft that may result in hail or tornadoes
Supercell
300
A coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones
Storm Surge
400
A period of time when there is less food resources
Famine
400
When a swarm of bugs attack
Locust/Insect Infestation
400
A whirlwind of dust
Dust Devil
400
A brief, shallow surface-based vortex which forms within the downburst emanating from a thunderstorm
Gustnado
400
A widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of severe thunderstorms known as a mesoscale convective system
Derecho
500
When a Virus takes over a specific area or the world
Epidemic/Pandemic
500
When The Road is shaking
Earthquake on Road
500
A downward gush of wind
Downburst
500
Man-Made Disaster(s)
Crime, Arson, Civil Disorder, Terrorism, War, Biological/Chemical threat, Cyber-Attacks, etc.
500
Rapid deepening of an extratropical cyclonic low-pressure area
Explosive Cyclogenesis (Bomb Cyclone)
