Q: Water is recycled constantly through which system?


Read this paragraph and choose the correct option from the provided answers:

Water is recycled constantly through the ecosystem. That means any water you drank today has been around for millions of years. You could be drinking water that was once drunk by George Washington, the first humans, or even the dinosaurs.

 Choices:

- the hydropshere

- the habitat

- the troposphere

- the ecosystem


A:
the ecosystem