Cold fronts cause thunderstorms as they pass by, and if cold air is advancing on warm air, the front is called a cold front. Given these facts, where do thunderstorms come from among the following options:
- Too much rain in the clouds
 - When the environment is too cold
 - Earth's axis of rotation is tilted
 - fissures of hot, acidic water
 - More than one trophic level.
 - it flows to a lower level
 - Dryness in the environment
 - When cold air advances on warm air


 

        When cold air advances on warm air 