1 would be word divided in syllables
2 is word with double consonants
3 is a hyphenated number word
4 is hyphenated adjective
5 is two word compound
6 is hyphenated compound
7 is one word compound
A
hope this is real help :0
<em>How it works. </em><em>A camera obscura is a dark room with a small hole in one wall in its simplest form.</em><em> When it's bright outside, light enters through the hole and projects an upside-down image of the outside world onto the wall opposite the hole.</em>