shirley_salas
shirley_salas Feb 3, 2026 β€’ 0 views

Practice problems: Human Impact on Ecosystems (9th grade biology)

Hey there! πŸ‘‹ Let's dive into how humans impact ecosystems. It's super important to understand this stuff, especially with everything going on with the environment these days. I've got a cool worksheet to help you test your knowledge. Good luck!πŸ€
🧬 Biology

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Michael_Brown_UK Dec 26, 2025

πŸ“š Topic Summary

Ecosystems are complex webs of life, and human activities can significantly disrupt them. From pollution and deforestation to overfishing and the introduction of invasive species, our actions often have far-reaching consequences. Understanding these impacts is crucial for developing sustainable practices that protect our planet.

πŸ§ͺ Part A: Vocabulary

Match the terms with their definitions:

Term Definition
1. Deforestation A. The contamination of the environment with harmful substances.
2. Pollution B. The removal of forests, often for agriculture or development.
3. Invasive Species C. A species that is not native to an ecosystem and causes harm.
4. Overfishing D. The practice of catching fish at a rate faster than they can reproduce.
5. Habitat Destruction E. The process by which a natural habitat is rendered functionally unable to support the species present.

Matching Answers:

  • πŸ” 1 - B
  • 🌱 2 - A
  • 🌍 3 - C
  • 🎣 4 - D
  • 🏠 5 - E

πŸ“ Part B: Fill in the Blanks

Complete the following paragraph with the correct words.

__________ is a major contributor to global warming due to the release of greenhouse gases like carbon dioxide. The burning of __________ fuels, such as coal and oil, releases these gases into the atmosphere, trapping heat and causing the Earth's temperature to rise. Another significant impact is __________, which reduces biodiversity and disrupts ecosystems. Reducing our __________ footprint is crucial for mitigating these effects.


Word Bank: deforestation, carbon, emission

  • πŸ’¨ Blank 1: Emission
  • πŸ”₯ Blank 2: Carbon
  • 🌳 Blank 3: Deforestation

🧠 Part C: Critical Thinking

Describe three specific actions that individuals can take to reduce their negative impact on ecosystems.

  • ♻️ Action 1: Reduce, reuse, and recycle to minimize waste and resource consumption.
  • πŸ’‘ Action 2: Conserve energy by using energy-efficient appliances and reducing electricity usage.
  • πŸšΆβ€β™€οΈ Action 3: Support sustainable products and businesses that prioritize environmental responsibility.

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