The construction is aqueducts
An El Niño<span> event changes the wind and water currents over the Pacific Ocean. The trade winds usually blow from east to west around the equator. ... The warm, western water makes for humid air and thus rainfall at that end of the ocean. During an </span>El Niño<span> event, this pattern breaks down.</span>
Answer:
Canadian Shield, Hudson Bay Lowlands, St. Lawrence Lowlands
Explanation:
Hudson has a very low population in the north, St lawrnece region has most the population in the south, and the most agriculture, the Canadian shield is heavy in natural resources like boreal forests and minerals, so large scale operations to extract these resources occur more there. Most people want to live in the city, further south where its warmer and you dont live next to clearcutting operations and coal mines.