Multiple choice

Which situation has had the most negative effect on the ecosystems of Earth?

  1. use of air pollution controls

  2. use of natural predators to control insect pests

  3. recycling glass, plastic, and metals

  4. increasing human population
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A growing human population increases the demand for resources, energy, and land, leading to widespread habitat destruction and pollution. This is the root cause of many other negative environmental impacts.

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