Question

how does the brook flow through the hills

Answer 1

Heya friend,

Here is the answer:

Brook flows through different hills and also meets somethings like pebbles,rocks,ups and downs that affect its smooth movement.
Because of these things it rushes every fast.

Hope my answer helps you :)

Regards,
Shobana
^_^

Answer 2

By making sound and by hitting the pebbles and by edding on the object which came in its way