Every year, hundreds of students from different fields of science contact BookMyEssay to complete their respective quaternary science assignment. This is a different type of subject which mostly revolves around various scientific aspects of the world that have taken place in the last 2.6 million years. BookMyEssay is one of the rarest assignment help service that provides expert writers or tutors to help hundreds of students who need immediate quaternary science assignment help. The writers associate with us in this field, are the most experienced and skilled professional writers who know how to accomplish assignments on quaternary science perfectly to get high scores in the assessment.
This is a geologic time period that covers the most recent 2.6 million years of the earth. It includes the modern time and part of the Cenozoic Era too. Quaternary period is usually divided into two eras —
The Quaternary Period has witnessed drastic climate changes, which affected food resources, changed the characteristics of the earth’s crusts and the extinction of many species. The same period also witnessed the rise and evolution of ‘Human’.
Quaternary period is the most crucial period of the earth. Maximum changes in the earth, including the evolution of human has taken place during this period. As a result, every aspect that characterizes this period is important.
At the beginning of the quaternary period, the landforms were in the same location where those are today. Some minute changes have taken place due to tectonic movements. The orbital movement of the earth was almost the same as it is seen today. A slight shift in the orbital movement had taken place which had caused the ice age to set in for a short period. In this era, about 800,000 years ago, a cyclic pattern had emerged, when the ice age lasted for 100,000 years, followed by a warmer interglacial period of 10,000 to 15,000 years each. It was repeated for quite some time; the last ice age had set in about 10,000 years ago. After that, the sea levels rose remarkably, and the continents got their prominent outlines.
As the temperatures dropped, ice sheets extended all over the world and sea levels dropped too. During this period natural land bridges like Bering Strait between Asia and North America formed. It helped the animals and later humans to migrate from one continent to another.
As said earlier, this period also saw the evolution of different species of human. Homo Erectus was the first hominid who used fire. There are two hypotheses quite popular in science regarding the evolution of Homo Erectus – The first hypothesis is that Homo Erectus was originated in Africa, then dispersed all over Eurasia. The second hypothesis is that they migrated to Africa from Eurasia, which is supported by a few important excavations in Georgia.
Homo Neanderthal had been living in this world in between 200,000 years ago to 30,000 years ago from the modern time. Fossil evidences have proved that they were spread in different parts of western and central Europe. Homo Neanderthal was in many ways advanced than Homo Erectus.
Several evidences have been showing that Homo Sapiens was existing on the earth as early as 1, 95,0000 years ago, as such, Homo Sapiens were contemporary to Homo Neanderthal. For any unknown reasons, Homo Sapiens had withstood the adverse climatic changes, which destroyed Homo Neanderthals.
The above discussion is a part of the vast and intricate subject called quaternary science. Scientists, dedicated to this field of research, are getting newer evidences and information regarding this period. The subject is very interesting, but very complicated too. Students are given assignments on different aspects of quaternary science, depending on their stream of studies, like Zoology, Botany, Biology, Geology and Geography, etc.
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