investigate how Europeans perceive the consequences of massive migration flows in their country and their everyday life. In general, respondents consider the immigration of people outside Europe dangerous for their personal security, as well as a threat for the economy and the culture of their country. More precisely, in the 28 countries sampled, 62% of respondents think that the massive influx of immigrants in their country will increase the threat of terrorism and the crime rates. At the same time, 57% of Europeans believe that non-EU immigration harms the cultural homogeneity of their own country. This result is in line with the data shown by the REScEU Mass Survey conducted in 2016 in six EU member states (France, Germany, Italy, Poland, Spain, Sweden, and United Kingdom). Finally, European citizens also worry about the negative economic impact brought by immigration. Almost three respondents out of four (73%) believe that handling immigration poses a huge financial burden for receiving countries. Another 61% of them think that the mass influx of immigrants from outside of the continent set back the EU’s economy.
Convection currents form in atmosphere and freshwater lake. Convection currents occur when there is difference in temperature in both substances (eg. fluids). When there is a difference in temperature, the hot substance rises and the colder one sinks. The flow then will be form a hotter to the colder region.
Answer:
Human systems and political systems has created the quality of living in Northern European countries the best in Europe. This may be seen in Southern Europe as a full, with northern half being a lot of urban and southern elements being a lot of rural. It made Northern Europe more advance in infrastructure and social issues.
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The unsaturated zone is the area of the subsurface that is above the groundwater table. The pores of the soil and rock in this zone contain both air and water.
<h3>What is the water table?</h3>
The water table is the subsurface border between the unsaturated and saturated zones.
The water table is an underground border that separates the soil surface from the area where groundwater saturates crevices between sediments and rock fissures.
At this point, the pressures of water and air are equal.
The unsaturated zone is the soil surface above the water table, where both oxygen and water fill the crevices between particles.
Therefore Option C is correct as it is where a person will immediately reach after drilling a well through an unsaturated zone.
For more information about unsaturated zone refer to the link:
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