Marine Ecosystem Short Quiz

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| By Catherine Halcomb
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Catherine Halcomb
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Marine Ecosystem Short Quiz - Quiz

This short quiz about the marine ecosystem will measure your understanding of the marine ecosystem's aquatic resources. So, if you are interested in oceans and their systems, let's see how much knowledge you have gained about them.


Questions and Answers
  • 1. 

    Which of the following are the the aquatic resources? Tick three of the options below. 

    • A.

      Mangrove

    • B.

      Coral reefs

    • C.

      Lake

    • D.

      Minerals

    • E.

      Fossil energy

    Correct Answer(s)
    A. Mangrove
    B. Coral reefs
    C. Lake
    Explanation
    The correct answer includes the options Mangrove, Coral reefs, and Lake. These three options are considered aquatic resources because they are directly related to water bodies. Mangroves are coastal trees or shrubs that grow in saline or brackish water, providing habitats for various marine species. Coral reefs are underwater ecosystems formed by colonies of coral polyps, supporting a diverse range of marine life. Lakes are large bodies of water surrounded by land, providing habitats for aquatic plants and animals.

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  • 2. 

    97.5 % of the Earth's water is ...

    • A.

      Salty

    • B.

      Freshwater

    Correct Answer
    A. Salty
    Explanation
    97.5% of the Earth's water is salty because the majority of the water on Earth is found in the oceans, which contain high concentrations of salt. This salt comes from various sources such as rivers carrying dissolved minerals and salts from the land into the ocean. Additionally, processes like volcanic activity and underwater hydrothermal vents also contribute to the salt content in the oceans. Freshwater, on the other hand, makes up only a small percentage of the Earth's water, found in sources such as lakes, rivers, and groundwater.

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  • 3. 

    Most of Coral reefs can be found in ...

    • A.

      Warm ocean

    • B.

      Cold Ocean

    Correct Answer
    A. Warm ocean
    Explanation
    Coral reefs are primarily found in warm oceans because they require specific environmental conditions to thrive. These conditions include warm water temperatures between 20 to 30 degrees Celsius, as well as clear and shallow waters that allow sunlight to reach the coral. Warm oceans provide these necessary conditions for the growth and development of coral reefs, making them the ideal habitat for these diverse and vibrant ecosystems. In contrast, cold oceans generally do not meet the temperature requirements for coral reef formation and are therefore less suitable for their existence.

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  • 4. 

    A marine colorful invertebrate animals which made of calcium carbonate is ...

    • A.

      Tuna fish

    • B.

      Lobster

    • C.

      Coral reefs

    • D.

      Shrimps

    Correct Answer
    C. Coral reefs
    Explanation
    Coral reefs are a marine ecosystem formed by colonies of coral polyps that secrete a hard exoskeleton made of calcium carbonate. These invertebrate animals are known for their vibrant colors and diverse species. Coral reefs provide important habitats for a wide range of marine life, including fish, crustaceans, and other invertebrates. They also play a crucial role in protecting coastlines from erosion and providing food and livelihoods for millions of people around the world. Therefore, coral reefs are the correct answer in this context.

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  • 5. 

    Below are the value of Coral reefs, except ...

    • A.

      As marine food resource

    • B.

      As the coastal protection from wave

    • C.

      As source of medicine for cancer

    • D.

      As oxygen supplier

    Correct Answer
    D. As oxygen supplier
    Explanation
    Coral reefs are valuable for various reasons, including as a marine food resource, as coastal protection from waves, and as a source of medicine for cancer. However, they are not considered as a direct supplier of oxygen. While coral reefs do produce oxygen through photosynthesis, the amount they contribute to the overall oxygen supply is relatively small compared to other sources such as phytoplankton in the ocean and plants on land.

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  • 6. 

    A series of coral island that form a circular shape surrounding a central lagoon is called as ...

    • A.

      Barrier reefs

    • B.

      Atoll Reefs

    • C.

      Fringing  Reefs

    • D.

      Option 4

    Correct Answer
    B. Atoll Reefs
    Explanation
    An atoll reef is a series of coral islands that form a circular shape surrounding a central lagoon. These coral islands are often low-lying and located on the rim of an underwater volcano or seamount. Over time, as the volcano subsides and erodes, the coral reefs continue to grow and form a ring-shaped structure. The central lagoon is usually shallow and may be connected to the open ocean through channels or passages. Atoll reefs are commonly found in the Pacific and Indian Oceans and are home to diverse marine ecosystems.

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  • 7. 

    Reefs which are separated from the main coast by a deep channel or lagoon is ...

    • A.

      Barrier reefs

    • B.

      Atoll reffs

    • C.

      Fringing reefs

    • D.

      None of the above

    Correct Answer
    A. Barrier reefs
    Explanation
    Barrier reefs are formed when a coral reef grows parallel to the coastline but is separated from the mainland by a deep channel or lagoon. These reefs act as a barrier between the open ocean and the coastline, protecting the coast from the full force of waves and providing a habitat for diverse marine life. Atoll reefs, on the other hand, are circular or horseshoe-shaped reefs that surround a lagoon, while fringing reefs directly border the coastline. Therefore, the correct answer is barrier reefs.

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  • 8. 

    A group of trees which live along the coast is ...

    • A.

      Tropical rainforest

    • B.

      Deciduous forest

    • C.

      Mangrove forest

    • D.

      Savana grassland

    Correct Answer
    C. Mangrove forest
    Explanation
    Mangrove forests are a group of trees that thrive along the coast. These unique forests are characterized by their ability to grow in saline or brackish water, making them well-adapted to coastal environments. The trees in mangrove forests have specialized aerial roots that help them to anchor in the muddy soil and obtain oxygen in waterlogged conditions. They provide important ecological services, such as protecting coastlines from erosion, providing habitats for various marine species, and serving as a nursery for fish and other aquatic organisms.

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  • 9. 

    Which of the following is not the benefit of magrove forest?  

    • A.

      As the habitat of marine animals

    • B.

      As the protection of sea water abrasion

    • C.

      As landslide prevention

    • D.

      As food source for marine animals

    Correct Answer
    C. As landslide prevention
    Explanation
    Mangrove forests provide numerous benefits, such as serving as a habitat for marine animals, protecting against sea water abrasion, and acting as a food source for marine animals. However, they do not play a direct role in preventing landslides. Therefore, "As landslide prevention" is not a benefit of mangrove forests.

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  • 10. 

    Indonesia has a great number of sustainable potential fishery especially for ...

    • A.

      Crustacean (Shrimp, Lobster)

    • B.

      Tuna Fish

    • C.

      Shellfish

    • D.

      Coral Reefs

    Correct Answer
    B. Tuna Fish
    Explanation
    Indonesia has a great number of sustainable potential fishery, particularly for Tuna Fish. Tuna is a highly valued and sought-after fish species, both in domestic and international markets. Indonesia's vast coastline and marine resources provide an ideal habitat for Tuna, making it a lucrative fishing industry for the country. Additionally, Tuna is known for its high economic value and nutritional benefits, further contributing to its significance in Indonesia's fishery sector.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 22, 2021
    Quiz Created by
    Catherine Halcomb
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