A. Answer the following questions. 1. What is migration ? 2. What is the difference between emigration and migration in terms of size? 4. What is tsunami? 5. How is an earthquake measured?
Answers
Migration, the difference between emigration and migration in terms of size, tsunami, earthquake measurement?
Explanation:
Migration: Migration refers to the process where people move from one place to another for different reasons. One of the major reasons for human migration in the modern century is in search of work and settlement.
Emigration and Migration: While both the words migration and emigration refer to leaving one’s own place, there is a major difference between these two. While emigration results in a long-term effect on the population size of the place where the emigrants are finally settled, migration might not be permanent. People come back to their home countries after a few years when their goals are not fulfilled.
Tsunami: Tsunami refers to a series of waves caused in water bodies due to various reasons. These waves are very high and display a large volume of water resulting in loss of property and lives. Tsunamis are majorly caused in oceans due to volcanic eruptions, earthquakes, and human activities like underwater explosions.
Measuring earthquakes: The measurement of earthquakes is taken using Seismographs. The seismograph measures the seismic waves which are the major cause of earthquakes. Richard scale is the most commonly used scale for measuring the accurate amplitude of an earthquake.
Answer:
1. Migration is the process or act of migrating, i.e. the movement from one region or place of habitat to another. It is when an individual or a group of animals move from their habitat to the new habitat.
2. Emigrate means you are exiting your current homeland. Migrate means to move, like those crazy Monarch butterflies that migrate from Canada to Mexico and back. Emigrate is from the point of view of the departure. Think exit. Migrate is all about moving. Think move.
4. A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.
5. Earthquakes are recorded by a seismographic network. Each seismic station in the network measures the movement of the ground at that site. The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake.
Explanation:
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