Test: Biodiversity & Conservation - 2 - UPSC MCQ

2. Bioremediation

Explanation:

• Habitat destruction (1), introduced species (3), and over-exploitation (4) are all significant threats to biodiversity. They can lead to the loss of species, degradation of ecosystems, and reduction in genetic diversity.

• Bioremediation (2), on the other hand, is a process that uses living organisms (like microbes or plants) to remove pollutants from the environment, helping to restore ecosystems and promote biodiversity. It is not considered a threat but rather a technique to improve environmental health.

Rio de Janeiro, Brazil

Popularly known as the 'Earth Summit', the United Nations Conference on Environment and Development (UNCED) held on 3-14 June 1992, in Rio de Janeiro, Brazil, marked the twentieth anniversary of the United Nations Conference on the Human Environment held in Stockholm, Sweden, in 1972