Why is mining dangerous?
a. causes new plant and animals to move into the area
b. acids, chemicals and heavy metals can poison the environment
c. increases freshwater and aquatic organisms
Mining can be dangerous for several reasons, but the correct answer among the options given is:
b. acids, chemicals, and heavy metals can poison the environment
Here's why mining is considered dangerous and the nuances of each option provided:
a. Mining typically doesn't cause new plant and animal species to move into the area; in fact, it often leads to habitat destruction, which can reduce biodiversity. If new species do move in, it is often because the ecosystem has been disrupted and native species have been displaced, which is generally not a positive outcome.
b. Mining can indeed release harmful substances into the environment. When rocks and minerals are broken up during the mining process, substances like acids, chemicals, and heavy metals may be released. These toxic materials can leach into soil and waterways, poisoning ecosystems and posing health risks to humans and wildlife. Acid mine drainage is one particularly harmful phenomenon associated with mining, where sulfuric acid and dangerous heavy metals like arsenic are released into the environment.
c. Mining typically does not increase freshwater and aquatic organisms. In fact, it often has the opposite effect by polluting water sources, destroying aquatic habitats, and causing declines in aquatic organisms' populations.
Additionally, aside from environmental dangers, mining can be hazardous to workers due to the risk of accidents such as cave-ins, explosions, and exposure to hazardous materials. It also poses risks to communities nearby if not properly managed, as pollutants can affect air and water quality, leading to health problems for local residents.