NOAA estimates that ______ of coral reefs worldwide are threatened by either human activity or environmental changes.
A) 10%
B) 25%
C) 50%
D) 75%
E) 90%
Correct Answer:
Verified
Q16: Refer to Infographic 1.Carbon dioxide emissions have
Q17: Refer to Infographic 3.Which ocean zone has
Q18: The lowering of the pH of the
Q19: If present trends continue,the ocean's surface waters
Q20: What effect do acidic ocean waters have
Q22: What benefit do corals get from their
Q23: Which of the following is TRUE of
Q24: Coral bleaching is _.
A)when the sun bleaches
Q25: What benefit do zooxanthellae get from their
Q26: Lower pH affects which coral developmental stage/process?
A)fertilization
B)larval
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