Nowhere else in the world do Emperor penguins live, do 4000 meter deep ice sheets exist, do distant galaxies shine brighter, or do winds blow colder. The extreme climate of the Antarctic and its remote location on the globe make it an ideal laboratory. Scientific research of such rare conditions may offer the potential to better understand the entire global ecosystem. Because of the efforts of scientists and documentarians, who bring back rare data and footage informing the public about Antarctica's features and ecosystem, the interest among tourist to see and experience this unspoiled place has grown exponentially
Elicit answers to this question:
• Why is it possible for a paragraph to not have
a topic sentence?
2. Confi rm answer. (Answer: A paragraph without
a topic sentence may continue to support the
topic sentence of the previous paragraph.)