1) How does the author develop her ideas in the text? A)
by ridiculing both sides of the dinosaur debate as
extreme perspectives
B)
by presenting two different perspectives on a
scientific debate without bias
C)
by weighing the evidence for one side of the debate
more heavily than another
D)
by having two authoritative scientists debate the
evidence against one another

i don't see any questions on your profile, currently, but i'd be happy to try and with any problems that you have, so long as i understand the problem myself.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.