What are the difference between low-order, medium order and high-order goods and service

Low-order products are products that are repeatedly purchased and are low-priced while Middle-order products are time-to-time items that are purchased but not as often as low-order products. Also, High-order products are the most expensive items or have a limited market and are scarcely purchased.

the following sets of characteristics describe what we know about the outer plants is c. rocky surface, closet to the sun and larger in size