It is the winter solstice. T<span>he solstice that marks the onset of winter, at the time of the shortest day, about December 22 in the northern hemisphere and June 21 in the southern hemisphere. I know this mainly because I had the same question. Good luck :)</span>
Answer:
B) Extremely cold climate conditions made it difficult to live in the region
Explanation: In places where there are countless mountain ranges, there is bound to be isolation to the point where the people that already reside there would develop their own language, culture, and mannerisms. Northern Europe is filled with mountains and cold climate. Many people from other regions in Europe would have a hard time adjusting to the harsh conditions like the natives.
Answer:
Considering that the star is less massive than the sun, the smaller mass of the star would provide a less strong force of gravity at any distance, and consequently a lower orbital speed. Thus, the year of the planet would be longer than that of the Earth.
Explanation:
One way in which the study of populations ( human populations - I assume) affects us is that they can help predict the population size in the future and prepare us for it. For example, if we see that the population is decreasing, a country might want to consider supporting child-bearing or immigration to avoid the problem of too many people receiving pensions but not paying taxes.
The levels of greenhouse gases in the atmosphere have been increasing due to the widespread burning of fossil fuels by the growing human populations.