The causes of loss of biological diversity are:
Correct answer: B. All of the above
- A. Over hunting is perhaps the most obvious direct cause of extinction in animals, as it has affected several large and well-known species
- B. All of the above
- C. A major, though at present largely unpredictable, change in natural environments is likely to occur within the next century as a result of large-scale changes in global climate and weather patterns
- D. Genetic diversity as represented by genetic differences between discrete populations with wild species, is liable to reduction as result of the same factors affecting species
Explanation
Overhunting directly causes extinctions, while habitat and environmental changes can reduce genetic diversity and climate change can alter natural environments. All three statements describe causes or mechanisms of biodiversity loss.
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