1) The word "school" contains two vowels: O and O.

2) Cyclones play a vital role in Earth's climate system by redistributing heat and moisture, maintaining global temperature patterns, and influencing weather patterns.

3) The most-watched television event in the United States is the Super Bowl, with millions of viewers tuning in each year.

4) The Civil Rights Act of 1964 in the United States outlawed discrimination based on race, color, religion, sex, or national origin.