Question

A test tube filled with water is placed over a funnel filled with water and a green plant called Elodea. When the plant is exposed to light, it begins to produce bubbles. The bubbles being produced are most likely-

Answer 1

Answer: The bubbles produced are most likely due to oxygen.

Explanation:

Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.

The balanced chemical reaction for photosynthesis is:

$6CO_2+6H_2O\rightarrow C_6H_{12}O_6+6O_2$

Thus the bubbles produced are most likely due to oxygen.