To fill in the blanks in the provided paragraph, you can use the following terms:
- Deforestation - refers to the removal of trees from wooded areas.
- Runoff - refers to excess fertilizer contaminating bodies of water.
- Invasive species - refers to organisms not native to a particular ecosystem.
- Conservation - refers to efforts to protect and preserve the environment.
Here’s how the paragraph would look with the correct terms filled in:
Humans can have positive and negative impacts on the environment. For example, deforestation, which involves removing trees from previously wooded areas to make way for farming or other human activities, can have negative impacts on the environment. Likewise, when human activities result in bodies of water being contaminated with excess fertilizer, this runoff can result in negative impacts like algae overgrowth. Yet another kind of negative impact can come from accidental or intentional introduction of invasive species, which are organisms that are not native to a particular ecosystem. However, conservation efforts by humans can help to protect and preserve the environment.