A divergent Plate boundary is where new ocean floor is created.
Extra: A convergent plate boundary (Oceanic-Oceanic, Oceanic-Continental, Continental-Continental) is where crust is destroyed.
The shockwave from an undersea earthquake causes 'ripples' in the ocean which are very large swells. When the bottom of the swell touches land, it must build up higher to maintain it's size. Therefore when it approaches the beach, water is drawn away from the beach to compensate for the ocean depth getting shallower under the tsunami swell. More water is drawn from in front of the swell than behind due to the movement of the swell.
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:
Answer:
Subduction happens in Location A but not in Location B.
Explanation:
In the two descriptions, we have two different types of plate boundaries. At location A, where the plates collide, and one moves over the other while the other is pushed downward, we have a convergent plate boundary. At location B, where the plates slide past each other, we have a transform plate boundary.
- At location A, a subduction zone will occur. The subduction zone will appear at the point where the two plates collide, and if it is in the ocean, there will be a trench, if it is on land, a mountain chain will be forming.
- At location B, there will not be a subduction zone, instead, there will be a fault. A fault will occur because of the sliding past each other of the plates, as they create big pressure between each other, so at the boundary itself, there will be cracks in the crust where the crust is under immense pressure and it often results in earthquakes.
