3. What are some of the most important pieces of advice you would give someone who is about to complete a physical activity in an extreme environment?

1) you should be hydrated and have good supply of water

2)you should stop and take frequent rests

3) you shouldn't get lost

Explanation:

answer; i believe that the correct answer is (north and south);

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.