Answer:The oceans are changing because of the global ice melting and the amount of pollution that has been introduced to the ocean over the years.
Explanation:Due to the global climate change oceans are changing and due to how ships pollute the environment also. Considering that petrol waste is non biodegradable, it stays longer and affect the life in the oceans where fishes are likely to die due to that.
There are several things that you should ask yourself when analyzing word choice, but the most important is to choose the shortest and simplest word that conveys the meaning you want.
