Because the earth's axis is tilted. It is all about the tilt of the Earth's axis.
During the summer, the sun's rays hit the Earth at a steep angle. The light does not spread out as much, thus increasing the amount of energy hitting any given spot. Also, the long daylight hours allow the Earth plenty of time to reach warm temperatures.
During the winter, the sun's rays hit the Earth at a shallow angle. These rays are more spread out, which minimizes the amount of energy that hits any given spot. Also, the long nights and short days prevent the Earth from warming up. That's why we have winter.
I hope this helped!
Thank you,
Otaku
Answer:
South Korea
Explanation:
The darkest shaded area (the highest amount) is South Korea, aside from the United States, which is not an option.
Using rates of erosion to determine absolute age is only practical for geological features that have not been disturbed. If the layers of the soil are undisturbed, be it by human action or natural disturbance, than the layers are sitting on top of each other and mark the separate periods of time with their characteristics, so it doesn't matter how big of an erosion has taken place, there's still remains of a certain period and determine its age.
