Which of the following is a human activity that can cause ecosystem disruption?

• A. Photosynthesis
• B. Natural selection
• C. Seasonal migration
• D. Deforestation

Answer: (D)

Verified step by step guidance

1. Understand the concept of ecosystem disruption: Ecosystem disruption refers to changes in the natural balance of an ecosystem caused by external factors, often leading to negative impacts on biodiversity, resource availability, and ecological stability.
2. Analyze the options provided: Photosynthesis is a natural biological process carried out by plants, algae, and some bacteria to convert sunlight into energy. Natural selection is an evolutionary process that occurs naturally over time. Seasonal migration is a behavior exhibited by certain species to adapt to environmental changes. None of these are human activities.
3. Focus on the correct answer: Deforestation is a human activity involving the removal of trees and vegetation from forests, often for agriculture, urban development, or logging. This activity disrupts ecosystems by destroying habitats, reducing biodiversity, and altering climate patterns.
4. Explain why deforestation causes ecosystem disruption: Trees play a critical role in maintaining ecological balance by providing habitats, regulating water cycles, and absorbing carbon dioxide. Removing them leads to soil erosion, loss of species, and increased greenhouse gas emissions.
5. Conclude the reasoning: Among the options provided, deforestation is the only human activity that directly causes ecosystem disruption, making it the correct answer.