Summarizing Central Ideas and Purpose: The Hot Zone — Unit test

Question 21 • EN091 Freshman English A

Which statement best summarizes "Save the Coral Reefs”?

Answer

Coral reefs are a very important component of the ocean’s ecosystem because they support sea life, such as crabs and sea turtles. In fact, over four thousand species depend on the survival of the reefs, which are being destroyed by bleaching. More must be done immediately to save the reefs.

Development along the coastal regions has significant negative effects on coral reefs. The reefs are an essential part of the ocean’s ecosystem, and when people build structures on top of them, they are easily damaged because they are so fragile. We should limit construction along the coast to protect the reefs.

Construction along the coasts, overfishing, and bleaching have seriously damaged the world’s coral reefs. Since reefs are a very important part of the ocean’s ecosystem, their destruction has a devastating environmental impact, and we must work to protect them.

Coral reefs are fragile structures made of limestone. People who build in coastal regions and others who overfish our seas must be stopped, because they don’t care about all the species that rely on the survival of reefs, such as sea turtles, clownfish, lobster, sharks, and crabs.

Explanation

A strong summary includes the main causes of harm, why coral reefs matter, and the need to protect them. Choice C brings together construction, overfishing, and bleaching, then explains that reef destruction harms the ocean ecosystem. Choice B focuses only on coastal development, while A and D emphasize narrower details rather than the full main idea.

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