Final answer:
Negative human impact in ecosystems can cause desertification, deforestation, invasive species, and global warming.
Step-by-step explanation:
The subject of this question is Biology. Negative human impact can cause a cascade effect on other ecosystems, resulting in desertification, deforestation, the introduction of invasive/non-native species, and global warming. Desertification refers to the process of transforming fertile land into desert-like conditions due to human activities such as overgrazing or improper land management. Deforestation involves the clearing of forests for agricultural purposes or urban development, disrupting the balance of ecosystems and impacting biodiversity. The introduction of invasive/non-native species by humans can have detrimental effects on native species and disrupt natural ecosystems. Lastly, global warming is the increase in Earth's temperature due to human activities, particularly the emission of greenhouse gases.
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