Here's why:

* Biological weathering is the breakdown of rocks and minerals by living organisms.

* Plants contribute to this process in several ways:

* Roots: Growing roots can exert significant pressure on rock, causing it to crack and break.

* Lichens: These organisms produce acids that can dissolve rock minerals.

* Bacteria: Certain bacteria can break down rock minerals by using them as nutrients.

* Decomposition: Decaying plant matter releases acids that can also contribute to weathering.

While vegetation is a primary driver of biological weathering, other living organisms like animals and fungi also play a role.