Algae float in the water during day time and sink during night ti… - Vidyadip

MCQ

Algae float in the water during day time and sink during night time because

A
They become buoyant due to consumption of food materials in respiration
B
They loose weight at night
C
They come up to enjoy sunshine
✓
They become buoyant in light due to accumulation of oxygen bubbles released in photosynthesis

✓

Answer

Correct option: D.

They become buoyant in light due to accumulation of oxygen bubbles released in photosynthesis

d
It’s obvious.

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