Q17

Underwater object appear _____ and _____, but a phenomenon called visual reversal make them appear ____

c.) Larger / closer / further

Q18

I have a balloon which has a volume of 2 litres at 30 meters. What will its volume be at 20 meters?

a.) 1 liter

b.) 4 liters

c.) 0.66 liters

d.) 2.67 liters

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