What is the North Atlantic Drift? an ocean current that brings cool northern waters south
an ocean current that brings warm southern waters north
an air current that pushes cool air from south to north
an air current that pushes warm air from north to south

an ocean current that brings warm southern waters north

Explanation:

The north Atlantic Drift played a major role in warming up the European's temperature during their tropical season.

The current originated from Gulf of Mexico and move all the way to Greenland and Iceland. When the current reach there, it eventually cools and sinker to the sea floor.

The scientist predicted that this current has been around for more than half-million years. Without it, the average temperature that people in Europe and north America have during summer will be actually closer to the temperature in autumn or even winter.

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!