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Earth science

Earth science or geoscience is the study of the Earth's structure, properties, processes, and four and a half billion years of biotic evolution.  Understanding these phenomena is essential to the maintenance of life on the planet. There are four basic areas of Earth science study:

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

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