Answer:
Buffered solutions or buffers are solution which resist a change in PH when small amounts of acid or base are added. Buffers contain an acidic species to neutralize OH- ions and basic species to neutralize H+ ions Buffers are therefore made of weak acid-base conjugate pairs , such as HC²H³O² and C²H³O².
Explanation:
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Europeans still ship goods using canals and rivers because it is cheaper than using other shiping methods
The correct answer is - A. Seoul grew much more rapidly.
Even though both New York and Chicago has had relatively quick growth rate since the 19th century, they can not match the tempo of growth rate of modern Seoul. After the end of the World War II, Seoul's population skyrocketed. Prior to the war, the city had walls around it, and the space for living was not changing, thus the population was relatively stable and with the same size. After the war though, the removed walls, foreign influence, and more open attitude, led to dramatic growth rate of the city. From being a city that had bellow one million citizens, Seoul grew to have almost 10 million people nowadays, and that has happened in a period of only around 70 years.
One simple and easy way that scientists can accurately date fossils found is through the ground levels. When you take a big chunk out of the earth, you can see the changes in the texture in the "ground" Each "layer" represents a set of years. And as you get further and further into the ground, fossils become older and older.