Answer: tar pit fossils hope this helps
Answer:
The role of human systems and political systems in Russia is very complex, Poverty is widespread, living standards square measure low and, typical of a non-developed country, the exportation of natural resources fuels abundant of Russia's economy. Russia is borderline at the best on most developed-country metrics. the country's per capita GDP is $24,451 and these all factors shapes the Russian core.
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Answer:
Improvement in trensportation helped the city to get urbanized because many people could move to the city.
changes in communication helped the city to better communicate with each other, and lot of electric poll would have got built in
population growth helped made city over populated, and they had to make and apartment and more building to provide houses and many convenient place
migration to the city also makes the city over-populated
economic development could cause many changes to city, and there would be more building because of economic development
Couldn't read the last one pal, sorry.
Explanation:
Answer:
Erosion breaks existing rocks and turns them into sediments. The sediments can be formed into rocks by the chemical reactions of dissolved seashells ( Calcium Carbonate.) This reaction can form sediments into rocks very quickly like the formation of concrete ( same chemical reaction). Erosion only happens on the earth's surface.
As erosion only happens on the earth's surface, sedimentary rocks are only formed on the earth's surface.
In other words:
Sedimentary rocks only found on or close to Earth's surface because sedimentary rocks are made of materials deposited in layers at the Earth's surface.