<span>The answer is:</span>
C. Sentence 1
<span>The
sentence “Earth's crust is made up of relatively rigid plates that
ride atop Earth's hot, semiliquid mantle.” Is the topic sentence because it
connects all the other sentences to its main idea. They entire paragraph is
related and can be a subtopic of this sentence, which is the purpose of a topic
sentence.</span>
<span>Hey There!
My family and I live under a roof.</span>
Answer:
D.a reference to the author of the text
Explanation:
Something known by a lot of people, is " common " knowledge.
