Question

A ____________________ occurs when the cold air moves under the warm air.

It pushes up the warm air. When the warm air hits the cooler upper atmosphere, it cools. If there are big temperature differences between the warm and cold fronts, severe weather like thunderstorms or _________________________ may form.

Answer 1

[AI-generated answer — Bot GPT 3.5]

A cold front occurs when the cold air moves under the warm air. It pushes up the warm air. When the warm air hits the cooler upper atmosphere, it cools. If there are big temperature differences between the warm and cold fronts, severe weather like thunderstorms or tornadoes may form.