Which of the following practices is considered unsustainable?

Overfishing is recognized as an unsustainable practice because it involves harvesting fish populations at rates faster than they can naturally replenish. This leads to a significant decline in fish stocks and can disrupt entire ecosystems, ultimately threatening biodiversity and the livelihoods of communities that rely on fishing for sustenance and economic activity. Unsustainable fishing practices can deplete fish populations to the point where they can no longer sustain themselves, which may cause long-term ecological damage and compromise food security.

In contrast, practices such as crop rotation, reforestation, and organic farming are designed to promote sustainability. Crop rotation helps maintain soil health and fertility, reforestation aids in restoring ecosystems and increasing biodiversity, and organic farming minimizes the use of synthetic chemicals, fostering a more sustainable agricultural system. These practices contribute positively to environmental health and help ensure resources are preserved for future generations.