Final answer:
Recycling and re-using metals and minerals is important because it helps reduce pollution, conserve finite resources, reduce energy consumption, and mitigate climate change. It is also economically beneficial and helps preserve natural resources for future generations. Option a.
Step-by-step explanation:
Importance of Recycling and Re-using Metals/Minerals
Recycling and re-using metals/minerals are crucial practices for several environmental and economic reasons. The most significant reason is that these processes help reduce pollution and conserve finite natural resources. Metals and minerals are not infinite, and their extraction often involves considerable energy consumption and environmental disruption. Therefore, contrary to the idea that metals/minerals do not need recycling, it is essential to understand that they are limited and their recycling is a sustainable measure.
Recycling metals/minerals is not as costly or inefficient a process as it might seem; rather, it is a relatively inexpensive solution that helps manage environmental contamination effectively. While recycling does require some energy, the energy saved in the manufacturing process often outweighs the energy consumed in recycling. Metal recycling, particularly with aluminum, is highly effective from both an energy and resource standpoint. The practice of recycling also contributes to reducing greenhouse gas emissions, thereby mitigating global climate change.
Therefore, the correct answer to the student's question is: a) Recycling and re-using metals/minerals help reduce pollution. It is an integral component of environmental conservation efforts and contributes to the sustainable use of natural resources for future generations. Additionally, recycling can provide economic benefits by creating markets for recycled materials and saving money in the long term.