Seismometers are tools which measure motion in the ground including seismic waves generated by earthquakes, volcanoes, and other activities which might create seismic waves. Seismometers measure any movement of seismic activity in the earth and today this is done by electronic means whereby the machine measures any changes in seismic activity in the surrounding areas of the seismometer. The first seismometer is believed to have been invented by Zhang Heng of China's Han Dynasty in 132 AD.
The FTA stands for Free Trade Agreement. Canada and the United States established this trade agreement in 1988.
In 1994 Mexico joined this FTA and was superseded by the North American Free Trade Agreement (NAFTA). NAFTA came into force in 1994. Its purpose was to <span>create a trilateral </span>trade bloc<span> in </span>North America<span>. </span>
In 1998, Canada and the United States extended FTA to form NAFTA, hich established a free-trade zone with Mexico.
Answer:
Europe can be considered as a cultural region.
Explanation:
Europe is part of the Eurasian continent. It has been defined as a separate continent not as all others, but on the basis of culture, religion, and race. While this may come as strange, it is not actually, as almost all ethnic groups are descended from the Aryans, speak Indo-European languages, and follow the same religion (Christianity).
These traits put Europe on the map as a cultural region. Not to be confused though, as these are all general traits, which is in contrast with the high amount of different cultures, languages, and religious fractions throughout Europe. While the continent as a whole can be defined as a cultural region, it has to be mentioned that there are also smaller ethnic groups like the Magyars, Szekely, Finns, Basques, Tartars, etc. that come from different cultural, ethnic, and in some cases religious backgrounds.
Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill.