The pressure on the inner core is greater than on the outer core and the melting point of iron, and because the pressure effect is higher than the temperature effect, the inner core is solidified.
Answer:
The mean center of population is the place where an imaginary, flat, weightless, and rigid map of the United States would balance perfectly if all residents were of equal weight. Historically, the movement of the center of population has reflected the expansion of the country, the settling of the frontier, waves of immigration and migration west and south. Since 1790, the center of population has moved steadily westward, angling to the southwest in recent decades.
SOURCE: Geography Division, "Centers of Population Computation for the United States 1950-2010," issued March 2011, available at www.census.gov/geo/www/2010census/centerpop2010/COP2010_documentation.pdf. Consulted for historical reference: Historical Atlas of the United States, National Geographic Society, 1988.
NOTE: The Proclamation Line of 1763 limited British settlement to areas east of the Appalachian Mountains. Alaska and Hawaii were not included in the calculation of the mean center of population until 1950. Puerto Rico was not included in any decade. For more information on the mean center of population, an animated map, and other resources. This graphic is adapted from the "Census Atlas of the United States" published by the Census Bureau in 2007.
Explanation:
Corporations are often accused of despoiling the environment in their quest for profit. Free enterprise is supposedly incompatible with environmental preservation so that government regulation is required.
Such thinking is the basis for current proposals to expand environmental regulation greatly. So many new controls have been proposed and enacted that the late economic journalist Warren Brookes once forecast that the U.S. Environmental Protection Agency (EPA) could well become "the most powerful government agency on earth, involved in massive levels of economic, social, scientific, and political spending and interference.
But if the profit motive is the primary cause of pollution, one would not expect to find much pollution in socialist countries, such as the former Soviet Union, China, and in the former Communist countries of Eastern and Central Europe. That is, in theory. In reality, exactly the opposite is true: The socialist world suffers from the worst pollution on earth. Could it be that free enterprise is not so incompatible with environmental protection after all?
Albedo feedback is a positive feedback climate process where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of a planet. ... However, if warm temperatures decrease the ice cover and the area is replaced by water or land the albedo would decrease.
Answer:
Zagros Mountains
Explanation:
The Zagros Mountains are one of the most dominant geographic features in the Middle East. This mountain range has length of roughly 1,600 km. There are three countries through which the Zagros Mountains are stretching, those being Turkey, Iraq, and Iran. The majority of the Mountain range runs through Iran, making up big portion of the border with Iraq, as well as being a natural barrier at the southern coast of the country.
These mountains have elevation of over 4,400 meters above see level. They are responsible for the dry climate in Iran, as they are a big natural barrier for the air masses, so they create a rain shadow, making the interior of Iran very dry.
