Answer: the first one
Explanation: the rest are very wasteful :)
A, it takes years upon years for a glacier to move even a few feet.
<h2>
Answer:</h2><h2>Haha!</h2><h2>I don't know sorry (◔‿◔)</h2>
Answer:
more flexibility in movement
Explanation:
it allows the worm to pass waves of movement along its body to move through loose earth.
