Earthquakes and Global Warming

by Chad Steffy, May 2015

1200 words

4 pages

essay

Earth lithosphere contains a number of major and minor moving plates. Obviously the speed of movement and its rate are not more than several centimetres per year; however, this is significant change once observe it for decades. Thus, lithospheric plates account for the following eight major plates:

North American

South American

Pacific

Nazca

Eurasian

Antarctic

African

Indian-Australian.

Not significant for the first sight movements and changes of plates position usually result in the process of continents’ formation. Concerning the concept of continental drift, Alfred Wegener considered that long time ago big continents made up our Earth and it was called “Pangaea” at that time. According to Alfred Wegner’s suggestions, Pangaea was divided into continents we have now around two hundred million years ago (Plate Tectonics).

Glaciers are considered to be a massive surface ice on the land which runs down. In general, a glacier is maintained by snow accumulation. In contrast to icebergs, glaciers are able to shape the land around them while icebergs are split off on lots of glaciers and are covered by water. .

Tides are described as changing rise and/or fall of ocean/sea surface. They occurred as a result of the gravitational force of the moon and the sun with rotating Earth.

According to scientists who were involved in the study of ocean bottom. Earthquakes as well as volcanoes activity are related to movements of tectonic plates. What is more, it is widely-spread to consider that earthquake occurs once one of the plates bend.

There is a widespread conception that the seasons on the Earth are caused by various distance of the Earth to the Sun. in reality, seasons occurrence is explained by titled Earth and, thus, its rotation around the Sun.

Molecules of oxygen and nitrogen which are in the atmosphere scatter sunlight; thus, blue sky depends on the size of the particles in comparison to sun lights. In particular, when light comes to the Earth from the Sun, all light waves go through empty space and finally in the atmosphere start to interact with different particles as well as natural sources such as water, ice crystals, etc.

The Sun power expressed through its solar energy reaches the top of the Earth and reflects back to the atmosphere while two-thirds of it is absorbed by the surface of the Earth. In order to keep balance the Earth has to radiate the energy to space as the Earth is much cooler than the Sun. as a result, the Earth warms and the lower lay of atmosphere warms as well making up a capsule of warm air not emitted outside the atmosphere but absorbed in all directions on the Earth. In addition, thermal radiation is emitted by the land itself, thus, the temperature and the concentration of radiation is too high and dangerous to live with it. It is important to know that human itself produces much non-naturally occurred gases (chlorofluorocarbon) and add it to those existing naturally (carbon dioxide, methane, etc). As a result, the emission increases and cause warming of the Earth. It is also worth mentioning that natural greenhouse …

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