Question

What occurs when cool air acts as a barrier over which warmer, less dense air rises?

1) Convection
2) Radiation
3) Advection
4) Conduction

Answer 1

When cool air acts as a barrier over which warmer, less dense air rises, this is known as convection, a process that transfers heat through the movement of fluids, including air in the atmosphere.

Step-by-step explanation:

When a layer of cool air acts as a barrier over which warmer, less dense air rises, this process is known as convection. Convection involves the transfer of heat by the movement of a fluid on a large scale, which can include gases present in the atmosphere. In the context of weather systems, as warm air comes in contact with the cool air, it rises due to its low density. This type of transfer also occurs in weather systems. The rising warm air can create various weather patterns and is a crucial component of meteorology.