What has been the primary cause of the decline in the health of Japan's largest coral reef?
Coral bleaching has left only 1% of Japan's biggest reef healthy

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Science, Geography, Biology
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Overfishing
Pollution
Tourism
Rising sea temperatures
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which years did significant bleaching events occur in the reef?
1995, 2001, 2008, 2015
1990, 2000, 2007, 2016
1992, 2003, 2009, 2017
1991, 2002, 2006, 2018
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the approximate size of the Sakisa Lagoon?
50 square kilometers
67.89 square kilometers
75 square kilometers
80 square kilometers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of sea life is supported by coral reefs, despite their small coverage of the marine environment?
25%
20.5%
15%
10%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is necessary for coral reefs to recover from bleaching?
More fish population
Higher sea temperatures
Increased sunlight
Drop in sea temperatures and algae recolonization
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