what is the meaning of locomotion

9. Their emotional appeal The fine particles are mostly made from gases. There are four major origins for that gases which are responsible for these particles: rock (vaporized during combustion or casting), carbon from combustion, organic carbon, sulfates and nitrates. Take sulphur dioxide. It is created during engine combustion, but when it climbs into the atmosphere and mixes with rain it will become sulphuric acid. We all probably know very well what that will do- since it is highly corrosive and dangerous in concentration. To make a social world before photography, we'd have to make a world without picture IDs; without portraits of ordinary people; one without pictures as souvenirs of travel; one without celebrity pictures; one without advertising photographs; one without X-rays or views of outer space; your global without views of foreign and exotic peoples; one without pictures of sports, wars, and disasters; and something in which the great many people had no way to visually record the important events with their lives. The study of geology also encompasses Earth processes which can affect overall civilization. An earthquake can destroy a large number of lives in a few minutes. Also, tsunamis, floods, landslides, droughts, and volcanic activity may have an enormous influence on civilization. Geologists study those processes and can recommend action plans to minimize damage in the event that such events will occur. For example, by studying flood patterns of rivers, geologists can recommend areas to stop when building new cities,towns, and residential neighborhoods in order to prevent future damage. Earthquake science, although a very difficult division of study, might help minimize problems for life and civilization by estimating where earthquakes are likely to occur (referred to as fault lines) also to recommend the technology to use within the construction of buildings over these vulnerable areas.