Question

The number of species are rapidly decreasing primarily due to

• A. the deterioration of ozone layer.
• B. the deterioration of the habitat.
• C. biological magnification of DDT.
• D. global warming.

Answer 1

Answer: (B)

Habitat destruction affects the survival of populations and reduces biodiversity.
Ever more people need ever more space. Human activity continues to encroach on natural environments, thereby destroying the habitats of countless species. While some progress has been made in slowing the rate of loss of tropical forests and mangroves, serious declines are also being seen worldwide in freshwater wetlands, sea ice habitats, salt marshes, coral reefs, seagrass beds and shellfish reefs.