Altruism is the belief in or practice of disinterested and selfless concern for the well-being of others. It is the principle and moral practice of concern for happiness of other human beings and/or animals, resulting in a quality of life both material and spiritual.
Of the annual global total of fixed nitrogen, human activities account for roughly 45%.
Nitrogen fixation is the global amount of nitrogen that gets assimilated by any living organism into another organic compound. The organic compound can be ammonia or nitrogen ions.
Of the total global annual nitrogen fixation, humans account for a great amount. The current estimation is that humans cause 45% of the nitrogen fixation annually. The leading causes of this high rate are the burning of fossil fuels and increased agricultural fertilizer use.
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Answer:
A good example of scientific theory repeated many times is the “theory of relativity” proposed by Albert Einstein in 1915 which was tested and repeated in 1919 at the time of solar eclipse which was later repeated again by many scientists.Explanation:
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