Answer:
Maybe cultural. I am not sure though 
 
        
             
        
        
        
C, an enormous road building project
        
                    
             
        
        
        
Problem: 8x-6-8=4+2x 
First Step: Combine like terms. First, do -6-8 which is -14. This will leave you with 8x-14=4+2x. 
Second Step: Collect Like terms again. This will leave you with 8x-2x=4+14. One you add and subtract those, you will be left with 6x=18. 
Third Step: Divide by 6 on both sides.
Fourth Step: You got your answer x=3
        
             
        
        
        
Answer:
They can collect some marine objects like shells and also the fresh winds are due to the physical features. 
Explanation:
Waves, tides and currents are the responsible to the erosion in coastal areas, this physical feature will give some benefits to the people there because the movement of the waves can bring to the beach some shells to sell or some crabs to eat. 
Also coast are dynamics, that mean, that they move faster in their content, giving some reasons to visit the beaches as touristic places. 
Waves and tides of coast also can be attractive for some boats (or practicing sailing) or other aquatic sports like surf. 
Hope this information is useful. 
 
        
             
        
        
        
Answer:
Air pollution harms human health and the environment. In Europe, emissions of many air pollutants have decreased substantially over the past decades, resulting in improved air quality across the region. However, air pollutant concentrations are still too high, and air quality problems persist. A significant proportion of Europe’s population live in areas, especially cities, where exceedances of air quality standards occur: ozone, nitrogen dioxide and particulate matter (PM) pollution pose serious health risks. Several countries have exceeded one or more of their 2010 emission limits for four important air pollutants. Reducing air pollution therefore remains important.
Air pollution is a local, pan-European and hemispheric issue. Air pollutants released in one country may be transported in the atmosphere, contributing to or resulting in poor air quality elsewhere.
Particulate matter, nitrogen dioxide and ground-level ozone, are now generally recognised as the three pollutants that most significantly affect human health. Long-term and peak exposures to these pollutants range in severity of impact, from impairing the respiratory system to premature death. Around 90 % of city dwellers in Europe are exposed to pollutants at concentrations higher than the air quality levels deemed harmful to health. For example, fine particulate matter (PM2.5) in air has been estimated to reduce life expectancy in the EU by more than eight months. Benzo(a)pyrene is a carcinogenic pollutant of increasing concern, with concentrations being above the threshold set to protect human health in several urban areas, especially in central and eastern Europe.
"Air pollution is causing damage to human health and ecosystems. Large parts of the population do not live in a healthy environment, according to current standards. To get on to a sustainable path, Europe will have to be ambitious and go beyond current legislation."
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Explanation: