Explanation:
The St. Lawrence seaway helped because it was large enough to allow shipping transportation to the USA. Which allowed Canada and the USA to trade goods. The seaway extends from Montreal through the Welland Canal in Ontario, Canada, to the eastern portion of Lake Erie.
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Decomposition<span> is the </span>process<span> by which organic substances are broken down into a simpler matter. The </span>process<span> is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to </span>decompose<span> shortly after death.</span>
Bedrock structure is primarily responsible for landscape differences.
Bedrock lies beneath the surface materials such as soil,
gravel, sand and other sediments. It is a deposit of hard, consolidated,
tightly-bound solid rock. It is the parent material for unconsolidated material
and soil above thus influencing landscapes.
The answer is diffration hope this helped!