Answer:
Human diversity is defined by the sum of unique biological and cultural variation within our species.
The main threats facing biodiversity globally are: destruction, degradation and fragmentation of habitats. reduction of individual survival and reproductive rates through exploitation, pollution and introduction of alien species.
Direct or indirect actions by humans have resulted in the decrease of biodiversity. Some of the direct human drivers are changes in local land use and land cover, species introductions or removals, external inputs, harvesting, air and water pollution, and climate change.
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