Question

read the text. bicycles have evolved over many years. in 1818, a heavy two - wheeled device called a \velocipede\ was patented in paris. the rider controlled the direction with a steering wheel and moved it forward by pushing his feet on the ground. it caught on quickly, and many people worked to refine its design. in 1863, pedals were added. a few years later, a new, lighter bike was developed that used a very large front wheel and a small rear wheel. called the \ariel,\ it became popular but was quite accident - prone. over the next decade, \safety\ bicycles were produced, incorporating welcome improvements such as air - filled rubber tires, brakes, and gears. by 1899, about a million bicycles were in use. which organizational structure does this text primarily use? sequential problem - solution

Explanation:

The text presents the evolution of bicycles in chronological order: starting with the 1818 velocipede, then 1863 pedals, the Ariel model, and finally 1899 safety bicycles. It follows a time-based sequence of development, which matches sequential organizational structure. Problem-solution structure would focus on a problem and its fix, which is not the primary focus here.

Answer:

sequential