They change shape due to a number of reasons.
The easiest reason to understand why they change is that they erode.
The coasts around the the world erode due to waves hitting cliffs, the wind batting against the coasts etc. Over a long period of time we can see that they change in shape.
(sorry I don't know why they move)
Answer: Fragment (missing predicate)
Explanation:
A sentence fragment is a sentence that is missing either its subject or its main verb.
The answer to this one is D. This is because the sentence does not have a predicate. A sentence's predicate describes what is happening. A sentence is considered a fragment if it lacks a predicate. Consider the following example:
<em>My cousin Fred.</em>
We know Fred is the subject of this phrase, but we have no idea what he's up to. As a result, this isn't a complete sentence.
As "three fish and a turtle" has 2 subjects, the three fish and the turtle, but no predicate to show what they're doing, the sentence is a fragment missing a predicate.
