Question

Most conservation biologists agree that the greatest single threat to global biodiversity is a human activities causing global climate change. b water and air pollution. c the destruction or alteration of physical ecosystems. d the overexploitation of certain species.

Answer 1

Most conservation biologists agree that the greatest single threat to global biodiversity is **c) the destruction or alteration of physical ecosystems**. While all the factors mentioned—climate change, pollution, and overexploitation—are significant threats to biodiversity, the destruction and alteration of ecosystems often have the most immediate and severe impact on species and their habitats. This includes activities like deforestation, urbanization, and habitat fragmentation, which can lead to loss of species and reduced ecological resilience.