Question

what are the reasons that human ecosystems create environmental problems that are difficult to solve? human ecosystems rely on biomimicry and nature as a model. human ecosystems change more slowly than other ecosystems. human ecosystems have largely unchecked population growth. human ecosystems have a heavy reliance on nonrenewable resources. human ecosystems produce large amounts of waste.

Explanation:

• Option 1: Biomimicry (using nature as a model) is a sustainable approach and not a reason for difficult - to - solve environmental problems. So this option is incorrect.
• Option 2: In fact, human ecosystems often change very rapidly (due to technological, population, and industrial changes) compared to many natural ecosystems. So this option is incorrect.
• Option 3: Largely unchecked population growth in human ecosystems leads to increased demand for resources, more waste production, and greater environmental impact, making problems hard to solve. This is a valid reason.
• Option 4: Heavy reliance on nonrenewable resources (like fossil fuels) is unsustainable. As these resources deplete and their extraction and use cause pollution and climate change, the resulting environmental problems are difficult to address. This is a valid reason.
• Option 5: Large amounts of waste production (especially non - biodegradable or toxic waste) from human ecosystems pollutes the environment (air, water, soil) and creates long - term environmental problems that are challenging to solve. This is a valid reason.

Answer:

C. Human ecosystems have largely unchecked population growth.
D. Human ecosystems have a heavy reliance on nonrenewable resources.
E. Human ecosystems produce large amounts of waste.