Answer:
Asia is home to some of the most diverse habitats in the world, both above and below the water, but it is estimated that more than one in three species are endangered
No, they dont have to because not everyone can do sport( i dont play sport either) but some kids are too lazy to play(im one of them lol) or sport is bot their thing… or they are….. I forgot so umm… yeah. Not everyone.
It is not a fragment. It is a complete sentence.