Answer:
sorry I didn't understand your question I am really sorry
The answer is d
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"Without sea ice, arctic plants and animals must either adapt or migrate. If they can’t, they will go extinct."
"If that isn’t enough, people who live in coastal communities within the Arctic Circle are also battling erosion along their coastlines."
"(These communities must relocate inland or their homes and land could be washed out to sea.)"
"(For ice in the Arctic, it’s a race against time. If humans do not change what we are doing to the global climate, the ice will continue to disappear and life as we know it will be altered.)"
Answer and Explanation:
When the author states that the ocean is like a patchwork quilt, he is referring to how the ocean is a highly diverse environment. As you already know, a patchwork is an object made up of elements that are completely different from each other, but which are able to harmoniously join together to form the patchwork. The ocean is also like that, as it is formed by several elements that are completely different, but that come together in harmony.
However, the ocean is not infinite, on the contrary, it can have an end, due to pollution and intense human exploitation that degrades the ocean immensely. This is what the author wants to present when he says that the ocean is not limitless.