Complete the Words

Coral reefs are built by tiny animals that live in close partnership with algae. The (1)al___ (2)li__ (3)ins___ the coral's (4)tis____ and (5)sup___ (6)nea___ all of its (7)fo__, (8)wh___ the coral (9)gi___ them a (10)sa__ home near the sunlit surface. When the water stays too warm for several weeks, the stressed coral expels its algae and turns a ghostly white, a process known as bleaching. Bleached coral is not yet dead, but without its main food source it slowly starves, and large areas of reef can die if high temperatures return year after year.