|Biodiversity is the level of variety of life. This can allude to hereditary variety, species variety, or environment variety inside a region, biome, or planet. Quick ecological changes ordinarily cause mass annihilations. Biodiversity gets utilized as a measure of the wellbeing of organic frameworks, and to check whether there is a threat that an excess of species get wiped out. The period since the development of people has shown a continuous biodiversity diminishment is going with misfortune of hereditary differing qualities.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.