24. Coral reefs are built from the calcium carbonate secretions of coral polyps, and the resulting structures provide shelter and homes for a diverse group of organisms. However, many of these reefs are decreasing in size due to the effects of climate change, and the animals that rely on them are in danger of extinction.Which activity would have a negative impact on biodiversity in coral reefs?
Answer: C
Increasing use of fossil fuels would have a negative impact on biodiversity in coral reefs.
The reliance on fossil fuels contributes to climate change, which negatively affects coral reefs and the biodiversity that depends on them. Increased carbon emissions lead to ocean acidification and rising temperatures, both of which threaten coral health and survival.
A) Increasing use of sustainable technologies
This option is incorrect because increasing the use of sustainable technologies would typically lead to a reduction in environmental harm. Sustainable technologies are designed to minimize ecological footprints and promote the health of ecosystems, including coral reefs.
B) Increasing the use of renewable energy sources
This option is incorrect as well, since renewable energy sources reduce dependency on fossil fuels and lower greenhouse gas emissions. Transitioning to renewable energy is beneficial for combating climate change and protecting coral reef biodiversity.
C) Increasing use of fossil fuels
This option is correct as it directly contributes to climate change, which has detrimental effects on coral reefs. The increased carbon dioxide levels from burning fossil fuels lead to ocean acidification and temperature rises, both of which can severely damage coral ecosystems and the diverse life they support.
D) Developing technologies that would reduce the amount of pollutants produced
This option is incorrect because developing technologies that reduce pollutants would protect marine environments, including coral reefs. Such technologies would contribute positively to biodiversity by improving water quality and reducing harmful impacts on coral ecosystems.
Conclusion
Increasing the use of fossil fuels is the only option that directly harms coral reef ecosystems and the biodiversity they support, primarily through contributing to climate change. All other options promote sustainability and environmental health, which are critical for preserving coral reefs and the myriad of species that depend on them.