Test: Biodiversity & Conservation - 2 - Humanities/Arts 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

• Vulnerable Species are those species that are likely to face the risk of extinction in the near future if the factors causing their decline continue. Their population has already reduced greatly, making their survival uncertain.

• Rare Species, on the other hand, have a naturally small population that is either confined to specific regions or scattered sparsely across a wide area. While they are not immediately at risk of extinction, their limited distribution makes them susceptible to becoming endangered if conditions worsen.