Semester 1 Exam Grade 9

Front

What is the author’s point of view in the passage?

Back

Measures must be taken to preserve and protect natural reefs.

Front

What percentage of marine life species are found in coral reefs?

Back

A quarter of all species of marine life in the ocean.

Front

What role do coral reefs play in protecting coastlines?

Back

They protect coastlines from erosion and flooding by absorbing the force of large waves.

Front

What are the economic benefits of coral reefs?

Back

They boost local economies through fishing, recreation, and tourism.

Front

What is the difference between natural and artificial reefs?

Back

Artificial reefs are not a replacement for the ocean’s natural reefs.

Front

Define coral reefs.

Back

Coral reefs are underwater structures made from calcium carbonate secreted by corals, providing habitat for marine life.

Front

What is the importance of biodiversity in coral reefs?

Back

Biodiversity in coral reefs supports ecosystem stability and resilience.

Front

How do coral reefs contribute to marine ecosystems?

Back

They provide habitat, food, and breeding grounds for various marine species.

Front

What are the threats to coral reefs?

Back

Threats include climate change, pollution, overfishing, and destructive fishing practices.

Front

What measures can be taken to protect coral reefs?

Back

Establishing marine protected areas, regulating fishing, and reducing pollution.