Tornadoes are primarily caused by severe thunderstorms, particularly when cold fronts collide with warm, moist air.

Volcanic eruptions are primarily caused by the movement of tectonic plates, which can lead to magma rising to the surface.

A drought is defined as a prolonged period of abnormally low rainfall, leading to water shortages.

A hurricane is characterized by a rapid increase in temperature and pressure in the atmosphere, leading to strong winds and heavy rain.

An earthquake is caused by the sudden release of energy in the Earth's crust, resulting in seismic waves.

A rainbow is formed when sunlight is refracted, reflected, and dispersed in water droplets, typically after rain.

Hurricanes can cause significant coastal erosion due to their strong winds and storm surges.

Tsunamis are often triggered by underwater earthquakes caused by the movement of tectonic plates.

The Aurora Borealis, or Northern Lights, is caused by the interaction of solar wind with the Earth's magnetic field.

Deserts are primarily formed in areas dominated by high pressure systems, which inhibit cloud formation and precipitation.