The Great Barrier Reef is the world's largest living structure. It is made up of around 2900 individual reefs and 900 islands. ... Climate change is perhaps the biggest threat to the Great Barrier Reef. Warmer ocean temperatures put stress on coral and lead to coral bleaching.
B- water in oceans, Lars and rivers ect
Answer:
C:subduction
Explanation:
tectonic plates called subtuction because of how places or cordination aee formed each of the tectonics interact are some places that no one has been seen for so answer is C:
sorry!! about my explainations!!
The answer to that is a magnesium iron.