During the second part of the experiment you can see bubbles begin to appear when they didn't before. Which of the answer choices below is the best reason why?(1 point)

Question

Responses

Oxygen was present in the water when it wasn't before
Oxygen was present in the water when it wasn't before

Carbon dioxide was present in the water when it wasn't before
Carbon dioxide was present in the water when it wasn't before

Light was applied to the scenario so photosynthesis could occur

Answer 1

The best reason why bubbles began to appear during the second part of the experiment is:

Light was applied to the scenario so photosynthesis could occur.

This is because bubbles often indicate the production of gases (such as oxygen) as a byproduct of photosynthesis, which requires light to happen.