Answer:
<h3>Migration can be defined as “a process of moving, either across an interna- tional border, or within a State. ... The phenomenon of migration has been indispensable to human histories, cultures, and civilizations</h3>
Answer: Most tsunamis are caused by large earthquakes below or near the ocean floor, but tsunamis can also be caused by landslides, volcanic activity, certain types of weather and near earth objects (e.g., asteroids, comets). Not all earthquakes cause tsunamis.
Explanation:
The ice caps are melting due to global warming which is being affected by the polluted air
Industrialization occurs when machines and industry are introduced and occur on a large scale.
Answer:
Explanation:
Measuring the amount of deu terium in the universe allows us to set a limit on the density of ordinary matter of universe. Density of the universe is about 9×10-27 kg m-3, because of the way in which deu terium was created in the Big B ang, an exact measurement of the amount of deuterium would allow scientists to set limits on the models of the great explosion.