Final answer:
Humans dominate the global ecosystem through food-getting methods, resource acquisition and trade, and population pressure.
Step-by-step explanation:
Humans dominate the global ecosystem in several ways:
- Food-getting methods: The methods we use to obtain food, such as farming and fishing, can dramatically impact ecosystems. For example, clearing land for agriculture can lead to the destruction of prairies, wetlands, and forests. Overfishing can deplete certain species, altering the entire ecosystem of rivers and coastal waters.
- Resource acquisition and trade: Our extraction and trade of resources like oil, natural gas, diamonds, and gold also shape the global ecosystem. These activities can contribute to habitat destruction and pollution.
- Population pressure: To meet the needs of growing populations, humans have built infrastructure like dams and cities. These interventions can have significant impacts on ecosystems by changing water flow, transforming wetlands into deserts, and fragmenting habitats.