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31.
What is the term for the introduction of non-native species into a new environment, often causing harm to native species?
Explanation:
32.
Which of the following is a major source of air pollution in urban areas and is linked to respiratory problems?
Explanation:
33.
What is the term for the gradual increase in the Earth's average sea level due to the melting of polar ice and thermal expansion of seawater?
Explanation:
34.
Which of the following is an important step in reducing waste and conserving resources by returning used products for recycling?
Explanation:
35.
What is the term for the process of using microorganisms to break down organic matter in the absence of oxygen?
Explanation:
36.
Which environmental issue is associated with the excessive use of chemical fertilizers and pesticides in agriculture?
Explanation:
37.
What is the term for the practice of preserving natural areas and protecting them from human activities?
Explanation:
38.
What is the term for the process of removing minerals, oil, or other valuable resources from the Earth's crust?
Explanation:
39.
Which international treaty aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances?
Explanation:
40.
What is the term for the process of using natural or constructed wetlands to treat and purify wastewater?