Q38 Consider the statements regarding ‘Coral bleaching’
i) When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn white.
ii) Coral across Australia's Great Barrier Reef has suffered its most devastating bleaching caused by warmer water.
Which of the above statements is/are correct?
Q38 Consider the statements regarding ‘Coral bleaching’
i) When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn white.
ii) Coral across Australia's Great Barrier Reef has suffered its most devastating bleaching caused by warmer water.
Which of the above statements is/are correct?
The correct option is C c) Both
38 Ans C
Explanation: When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white. Warmer water temperatures can result in coral bleaching. When water is too warm, corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching. When a coral bleaches, it is not dead. Corals can survive a bleaching event, but they are under more stress and are subject to mortality. Coral across Australia's Great Barrier Reef has suffered its most devastating die-off on record, a new report says,
In just nine months, bleaching caused by warmer water has killed around 67% of the coral in a previously pristine part of the reef, one of the natural wonders of the world.
c) Both
38 Ans C
Explanation: When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white. Warmer water temperatures can result in coral bleaching. When water is too warm, corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching. When a coral bleaches, it is not dead. Corals can survive a bleaching event, but they are under more stress and are subject to mortality. Coral across Australia's Great Barrier Reef has suffered its most devastating die-off on record, a new report says,
In just nine months, bleaching caused by warmer water has killed around 67% of the coral in a previously pristine part of the reef, one of the natural wonders of the world.
