due to the climate shipping cargo on the St. Lawrence seaway is impossible between November and April what kind of trade barriers is this considered

A manmade
B natural

This trade barrier can be considered a natural trade barrier. This is because it is caused by the natural condition of the climate and weather patterns in the St. Lawrence Seaway region.

B. Natural

The shipping restrictions on the St. Lawrence Seaway between November and April due to the climate can be considered a natural trade barrier.

To understand why, let's break it down:

Trade barriers are any measures or restrictions that hinder or limit the flow of goods and services between countries or regions. They can be imposed by governments or occur naturally.

In this case, the shipping restrictions are not imposed by any governing body but are due to the natural conditions of the climate along the St. Lawrence Seaway. The severe weather conditions during the winter months, including freezing temperatures, ice formation, and challenging navigation, make it risky and nearly impossible to transport cargo along the seaway during that period.

Therefore, the shipping restrictions on the St. Lawrence Seaway between November and April are considered a natural trade barrier, as they are caused by natural factors rather than manmade regulations or policies.