Question

Increased carbon in the oceans has caused the pH levels of the water to decrease. What is the largest impact of this ocean acidification on marine life?
A. Increased coral bleaching
B. Increased fish predation
C. Increased marine bird migration distances
D. Increased marine mammal hibernation time

Answer 1

Answer: option A Increased coral bleaching

Explanation: Increase carbon dioxide concentration in ocean causes acidity . To construct skeleton, corals takes calcium carbonate from sea water. Carbon dioxide affect corals badly preventing formation of calcium carbonate in ocean.

Answer 2

pH level is determined by the acidity or basicity of a given substance. The increased amount of carbon in the ocean causes a decrease in the pH of the ocean.

Impact of Ocean Acidification

• Ocean acidification is defined as the reduced amount of carbonate in the ocean. Carbonate is a key building block in seawater and oceans.

• The organisms such as coral and planktons have difficulty in forming shells and exoskeletons. The existing shells by the increased amount of carbon can dissolve in the water.

Thus, the increased amount of carbon leads to coral bleaching, in which shells of organisms are dissolved.

The correct option is A.

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