1) The Industrial Revolution led to significant urbanization, as people migrated from rural areas to cities in search of employment in factories.

2) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.

3) The Atlantic Ocean is the second-largest ocean and is known for its strong ocean currents, including the Gulf Stream.

4) A group of flamingos is called a "flamboyance."