Certainly! Let's break down the problem step by step:
Question: Roughly what percentage of the Earth's oceans have experienced little or no human disturbance?
Step 1: Understand the Problem
We need to determine the percentage of the Earth's oceans that have experienced minimal human impact or disturbance.
Step 2: Analyze the Options
The possible answer choices given are:
- 13%
- 5%
- 53%
- 99%
Step 3: Reason Through the Options
- 99% seems extremely high since human activities such as shipping, fishing, mining, and pollution have extensively affected the oceans.
- 53% is also quite high. Given the extensive industrial and human activities affecting oceans globally, it is unlikely that over half of the oceans remain untouched.
- 5% seems very low since some parts of the oceans are relatively remote and difficult to reach, possibly leading to a higher percentage of undisturbed areas.
- 13% is a reasonable estimate given that while significant portions of the oceans are affected by human activities, there still are considerable areas that remain largely undisturbed due to their remoteness or inaccessibility.
Step 4: Conclusion
After thoroughly analyzing the options, we conclude that the percentage of the Earth's oceans that have experienced little or no human disturbance is:
Answer: 13%
