The theory of continental drift by Alfred Wegener states that all land masses were originally united
in a single supercontinent known as Pangaea (250 million years ago). He shows
evidences like continental fit, similarity of rock sequences, glacial till and
striations, fossils (cynogathus-land reptile, lystrosaurus-land reptile,
mesosaraus-freshwater reptile, glossopteris-fern plant) to support his theory but
what was lacking is that it lacked a mechanism to explain HOW the continents
moved apart. But Harry Hess, a geologist and Navy submarine commander during
WWII <span>brought up a new
evidence to add in support of Wegener’s theory: the idea of seafloor spreading and magnetic reversals.</span>
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:
<span>Hurricane storm surge is the biggest threat. Hurricanes cause damage in three ways: wind, rain, and storm surge.
</span><span>There are steps you can take to help mitigate some of the damage caused by a hurricane or tropical storm. If your home is equipped with storm shutters, make sure you can quickly put them in place. Clear your yard of debris that could become projectiles in high winds and trim dead or overhanging branches from trees surrounding your home. It's also a good time to make a quick review of your home to make sure the roof sheathing is properly secured, that end gables are securely fastened to the rest of the roof, and that doors and garage doors are properly secured.
For personal safety, identify what storm shelter is available to you and prepare an evacuation plan for your family. Also, make sure you have a hurricane survival kit that includes bottled water, a first aid kit, flashlights, a battery-operated radio, at least three days of non-perishable food items, blankets, clothing, prescription drugs, eyeglasses, personal hygiene supplies and enough cash for at least three days.</span>
Answer:
The answer is abiotic factors
Rome gained power because little by little they started taking over the Mediterranean Sea
