Why hasnt the earth been word down to a flat plain?

Because the Earth is has underground plates that are constantly moving. These plates are called tectonic plates and they can either build, move, or create mountains and other land forms over long periods of time.

Explanation:

27+-

explanation:

bloom, great xd

answer: b) bubbling its way

explanation: an adjective is a word or a group of words that modifies a noun (name, thing, place,

in this case, the first option "to heartily enjoy" isn't describing or modifying any noun, the third option "hiking along merrily" is describing an action but it doesn't modify any noun, the last option "beside us" is just a preposition that indicates position, so the correct answer is the second one: "bubbling its way" because it is modifying the noun "stream".