The Awareness Quiz On Coral Bleaching

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The Awareness Quiz On Coral Bleaching - Quiz

Hey, check out this amazing awareness quiz on coral bleaching. Coral Bleaching takes place when coral polyps expel algae that live inside their tissues. These algae are responsible for the color of the coral reefs. This is caused by above-average seawater temperatures and global warming. Normally coral polyps live in an endosymbiotic relationship with these algae and they are crucial for the health of coral and the reef. How much do you know about this grave problem? Take this quiz and find out today!


Questions and Answers
  • 1. 

    In 2016 Coral Bleaching on the great barrier reef killed how much of the reef?

    • A.

      27

    • B.

      28

    • C.

      26

    • D.

      29, 50

    Correct Answer
    D. 29, 50
  • 2. 

    One of the leading cause of coral bleaching is ____________. 

    • A.

      Climate change

    • B.

      Ozone layer depletion

    • C.

      Pollution

    • D.

      All of the above

    Correct Answer
    A. Climate change
    Explanation
    Climate change is one of the leading causes of coral bleaching. Rising sea temperatures due to climate change can result in a process called "coral bleaching," where corals expel the algae living inside them, causing them to turn white. This happens because the corals become stressed and cannot sustain the symbiotic relationship with the algae. Climate change also leads to ocean acidification, which further harms coral reefs. Ozone layer depletion and pollution can also have negative impacts on coral health, but climate change is the primary driver of coral bleaching.

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  • 3. 

    The most severe bleaching in 2016 occurred near where?

    • A.

      Port Douglas

    • B.

      Port West

    • C.

      Port Texas

    • D.

      Port Los Angeles

    Correct Answer
    A. Port Douglas
    Explanation
    The most severe bleaching in 2016 occurred near Port Douglas.

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  • 4. 

    Localized triggers lead to localized .................?  

    • A.

      Bleaching

    • B.

      Coral

    • C.

      Photosynthesis

    • D.

      Hydrogen

    Correct Answer
    A. Bleaching
    Explanation
    Localized triggers, such as changes in temperature or pollution, can lead to localized bleaching of coral reefs. Bleaching occurs when corals expel the symbiotic algae living in their tissues, causing them to turn white. This process is often a response to stress and can be detrimental to the health and survival of coral reefs.

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  • 5. 

    Corals can survive  ........... term disturbance

    • A.

      Bit

    • B.

      Average

    • C.

      Short

    • D.

      Long

    Correct Answer
    C. Short
    Explanation
    Corals can survive short-term disturbances because they have the ability to recover and adapt quickly to changes in their environment. Short-term disturbances may include events like storms or temporary changes in water temperature or quality. Corals have mechanisms in place to repair damage and regenerate their tissues, allowing them to bounce back from these disturbances relatively quickly. On the other hand, long-term disturbances, such as chronic pollution or sustained high temperatures, can have more severe and lasting impacts on coral survival.

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  • 6. 

    Bleached Corals continue to live but after bleaching, they begin to ................?

    • A.

      Starve

    • B.

      Regain Color

    • C.

      Digest

    • D.

      Reproduce

    Correct Answer
    A. Starve
    Explanation
    After bleaching, bleached corals continue to live but they begin to starve. Bleaching occurs when corals expel the symbiotic algae that live in their tissues, causing them to lose their color. These algae provide the corals with essential nutrients through photosynthesis. Without the algae, the corals are unable to obtain enough food and energy, leading to starvation. This can ultimately result in the death of the corals if the bleaching event is severe and prolonged.

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  • 7. 

    The average interval between bleaching events has halved between which years?

    • A.

      2010 and 2016

    • B.

      1950 and 2016

    • C.

      1980 and 2016

    • D.

      2000 and 2016

    Correct Answer
    C. 1980 and 2016
    Explanation
    The correct answer is 1980 and 2016. This means that the average interval between bleaching events has decreased by half between 1980 and 2016.

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  • 8. 

    In 2017 the Bleaching extended to center region of the................?

    • A.

      Pacific Ocean

    • B.

      Great Barrier Reef

    • C.

      Amazon Reef

    • D.

      Angria Bank

    Correct Answer
    B. Great Barrier Reef
    Explanation
    In 2017, the bleaching event extended to the center region of the Great Barrier Reef. This suggests that the coral reefs in this area experienced significant stress and damage due to increased water temperatures. Bleaching occurs when corals expel the algae living in their tissues, causing them to turn white and become more susceptible to disease and death. The fact that the Great Barrier Reef, one of the world's largest and most diverse coral reef systems, was affected by bleaching highlights the widespread impact of climate change on marine ecosystems.

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  • 9. 

    If coral polyps die of starvation after bleaching they ..............?

    • A.

      Reproduce

    • B.

      Survive

    • C.

      Live

    • D.

      Decay

    Correct Answer
    D. Decay
    Explanation
    When coral polyps undergo bleaching, it means they have expelled the algae living inside them, which provides them with food through photosynthesis. Without this symbiotic relationship, the polyps are unable to obtain enough nutrients to survive. As a result, they eventually starve and die. Once the polyps die, their bodies start to decompose, leading to decay.

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  • 10. 

    To recover from bleaching the zooxanthellae have to re-enter the tissues of the coral polyps and restart the ............. to sustain the coral as a whole?

    • A.

      Photosyuthesis

    • B.

      Photosynthesis

    • C.

      Photosythesis

    • D.

      Photosnthesis

    Correct Answer
    B. Photosynthesis
    Explanation
    To recover from bleaching, the zooxanthellae, which are symbiotic algae living within the coral polyps, need to re-enter the tissues of the coral polyps. Once inside, they can restart the process of photosynthesis. This is crucial for the survival of the coral as a whole, as photosynthesis provides the energy and nutrients needed for growth and maintenance. Without photosynthesis, the coral would not be able to obtain enough food and energy, leading to further stress and potential death.

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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 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 08, 2018
    Quiz Created by
    Anthonyf
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