1 -
Occurs - happens
2 -
Coral goes white because humans throw bleach into the ocean because of the bleaching event. Corals can survive bleaching but suffer mortality.
3 -
4 -when carbon dioxide from factories go in the ocean the coral die because the water gets warmer. also from gas and coal.
5 - Layers of the Ocean
Twilight Zone - 3,300 ft deep
Midnight Zone - 13,00 ft deep
Abyss Zone - 20,00 ft deep
Trench Zone - 24 to 36 ft deep
6 -
If plankton died the food web would all die, e.g. above.