Standard Science Primary 3 Diversity

Siti observed that the fish in her aquarium were often swimming near the surface of the water after the air pump broke. Why were the fish doing this?

A To get more air from the surface
B To respond to the change in light
C To get more food from the surface
D To hide from predators
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Worked Solution

Step 1: Identify the problem (air pump broke). Step 2: Recognize the function of an air pump (dissolving air/oxygen into water). Step 3: Conclude that the fish are gasping for air at the surface because oxygen levels in the water are low.

Correct answer: To get more air from the surface

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