Question

the two main types of clouds that form low in the atmosphere, that is, below 6,500 feet, are cumulus and stratus. stratus clouds develop horizontally, whereas cumulus clouds are formed vertically. stratus clouds are flat, uniformly gray in appearance, and tend to fill the sky with layers of gloom. white, fluffy cumulus clouds, on the other hand, often float in a bright blue sky and have been called “fair weather clouds.” unlike stratus clouds, cumulus clouds are individual structures. they’re flat on the bottom and more puffy toward the top. given the right conditions in the atmosphere, cumulus clouds may also turn dark with rain, signalling the coming of a thunderstorm. which organizational structure does this text primarily use? compare - contrast problem - solution sequential

Explanation:

The text first describes the characteristics of stratus and cumulus clouds, then contrasts them with the conditions leading to a thunderstorm. It uses compare - contrast by highlighting differences in cloud structure (flat and uniform for stratus, puffy and individual for cumulus) and their relation to weather conditions like fair weather for cumulus and potential thunderstorm signs for cumulus under certain conditions.

Answer:

Compare - contrast