Because the northwest passage represents centuries of effort to find a route westward from the Atlantic and Pacific Oceans to the Arctic Archipelago of what is now Canada. Europeans searched for 300 years to find a viable SEA TRADE-ROUTE to Asia. If they were to find it, it would have been easier to travel through seas, and land in the past.
Answer:
Europeans could not navigate African rivers, which had many rapids, cataracts, and changing flows.
B. Russia’s climate is primarily temperate despite its northern latitude