A.
People are increasingly able to see the damage they are doing to the ocean,but to solve th e problems,they will meet with great difficulties.
B.
By the middle of the century,the edible fish will have harmful effects on human health.
C.
Earth is not exactly named,because the ocean covers almost three quarters of the planet.
D.
High temperature can damage corals and encourage organisms to migrate towards the poles in search of cooler waters.