How did the north want to protect its industry? through low tariffs encouraging westward expansion through high tariffs

It wanted to protect its industry by levying tariffs (taxes) on cheap imports.
Through low tariffs
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North protect their industry with low tariffs

The ocean influences weather patterns by distributing heat and moisture around the globe. This strong current of warm water influences the climate of the east coast of Florida, keeping temperatures there warmer in the winter and cooler in the summer than the other southeastern states. Since the Gulf Stream also extends toward Europe, it warms western European countries as well.