Which of the following is considered the greatest factor contributing to biodiversity loss?

• A. Invasive species
• B. Habitat destruction
• C. Overharvesting
• D. Climate change

Answer: (B)

Verified step by step guidance

1. Understand the concept of biodiversity loss: Biodiversity refers to the variety of life in a particular habitat or ecosystem. Biodiversity loss occurs when species, habitats, or ecosystems are degraded or destroyed, leading to a reduction in the variety of life.
2. Examine the options provided: The problem lists four potential factors contributing to biodiversity loss: invasive species, habitat destruction, overharvesting, and climate change.
3. Define each factor: Habitat destruction refers to the alteration or elimination of natural habitats, often due to human activities like deforestation, urbanization, or agriculture. Invasive species are non-native organisms that disrupt ecosystems by outcompeting native species. Overharvesting involves excessive exploitation of resources, such as fishing or hunting, leading to population declines. Climate change refers to long-term shifts in temperature and weather patterns, impacting ecosystems globally.
4. Evaluate the impact of each factor: Habitat destruction is widely recognized as the greatest contributor to biodiversity loss because it directly eliminates the physical space and resources that species need to survive. While invasive species, overharvesting, and climate change are significant, their impacts are often secondary or exacerbated by habitat destruction.
5. Conclude that habitat destruction is the correct answer: Based on scientific consensus, habitat destruction is considered the most significant factor contributing to biodiversity loss, as it directly affects ecosystems and species survival on a large scale.