Countries, US States, Capitals, Elements, 100 Most Common Words: by Repeated 2-Letters Block
The 2-letters block shown appear twice in some of the answers: find them! An orange cell means all its answers are made up of at least 2 words. At the end you will be asked about 2-letter blocks that appear 3 times in the same answer.
Note: answers with spaces do not count (eg can't have DB for 'antigua anD Barbuda')