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2016-12-02	mgrajapt	80	Check this topic
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2016-08-19	Numfon Weidinger	70	Check this topic
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2019-09-26	Rasna James	66	Check this topic
2017-05-08	mahabub	50	Check this topic
2017-04-07	Av9ash	76	Check this topic

Topic title: Population ChangesPopulations of living beings are constantly changing. The number of humans, animals, insects, or plants living in a given area can vary because of two kinds of factors: biotic and abiotic. Biotic factors are living factors that can influ

Topic category: Q4