EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -The leading cause of coral bleaching is climate change. A warming planet means a warming ocean, and a change in water temperature-as little as 2 degrees Fahrenheit-can cause coral to drive out algae. Coral may bleach for other reasons, like extremely low tides, pollution, or too much sunlight.
Detailed explanation-3: -Global ocean temperature has risen by 1.3°F since the late 19th century and is continuing to climb. Rising (or even falling) water temperatures can stress coral polyps, causing them to lose algae (or zooxanthellae) that live in the polpys’ tissues.
Detailed explanation-4: -#Facts about coral bleaching Rising ocean temperatures caused by climate change is the primary cause of coral bleaching. A temperature increase of just one degree Celsius for only four weeks can trigger bleaching. During bleaching corals become transparent, revealing their white skeletons.
Detailed explanation-5: -The leading cause of coral bleaching is rising water temperatures.