Is the amount of water on Earth constant?
Understand the Problem
The question is asking whether the total amount of water on Earth remains the same over time. This involves understanding the water cycle and how water is recycled through evaporation, condensation, and precipitation, as well as human impact on water resources.
Answer
Nearly constant
The amount of water on Earth is nearly constant.
Answer for screen readers
The amount of water on Earth is nearly constant.
More Information
The water on Earth undergoes the water cycle, changing states between liquid, solid, and gas. While Earth loses some water to space and gains some from space debris, the overall amount remains nearly constant.
Tips
People often mistake the availability of fresh water with the total amount of water. Earth's fresh water supply can be unevenly distributed even though the total amount is generally constant.
Sources
- The water cycle - NY1 - ny1.com
- How is there the same amount of water on Earth at all time? - Quora - quora.com
- Ask Tom: If the amount of water on Earth is constant, why do oceans rise? - Chicago Tribune - chicagotribune.com
