What is a pronoun for all rivers?

There isn't a single pronoun that specifically refers to "all rivers." Pronouns typically refer to individuals or groups, and while we might use "they" to refer to a group of rivers, it's not a universal pronoun for all rivers.

Here are some options depending on the context:

* They: This is the most common option when referring to rivers in general, especially if you're focusing on their collective action or characteristic: "They flow to the sea."

* The rivers: This is a more formal way to refer to all rivers as a collective group.

* Waterways: This is a broader term that includes rivers, but also canals, streams, etc.

Example:

* Incorrect: "All rivers are beautiful, it flows through the land."

* Correct: "All rivers are beautiful. They flow through the land."

* Correct: "All rivers are beautiful. The rivers flow through the land."

* Correct: "All waterways are essential to life. They connect us to the natural world."

Ultimately, the best pronoun to use depends on the specific context and the tone you want to convey.