Final answer:
The Saint Lawrence Lowlands are good for manufacturing due to fertile farmland, historical industrial development, and access to resources and transportation.
Step-by-step explanation:
Manufacturing is good in the Saint Lawrence Lowlands for several reasons. Firstly, the region has fertile farmland, which is essential for agriculture and dairy farming. This allows for the production of food to support the larger cities in the area.
Additionally, the lowlands have historically been a hub for manufacturing, with industries such as textiles and steel mills. The availability of resources and access to transportation, such as the St. Lawrence River and the Great Lakes, make it a favorable location for manufacturing.