A scientist fills a glass container with water and places an aquatic plant inside the container, then closes the lid and places the container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant’s leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance should be added to the water in order for the bubbles to reappear?(1 point) Responses carbon dioxide carbon dioxide hydrogen gas hydrogen gas glucose glucose oxygen oxygen

Answer 1

The substance that should be added to the water in order for the bubbles to reappear is carbon dioxide.

During photosynthesis, aquatic plants use carbon dioxide and sunlight to produce oxygen, which is what causes the bubbles to appear on the surfaces of the leaves. If the water is lacking in carbon dioxide, the rate of photosynthesis may decrease, leading to the absence of bubbles.