Question

A scientist feels a glass container with water and prices and aquatic plant inside the container then closes the lid and places the container indirect sunlight the scientists observe small bubbles on the surface of the plant's leaves on Days 1 and 2 but no bubbles on day 3 the scientists please that the bubbles were caused by photosynthesis which substance should be added to the water in order for the bubbles to reappear a. glucose B. oxygen c. hydrogen gas d. carbon dioxide

Answer 1

The bubbles observed on the surface of the aquatic plant's leaves were likely caused by the process of photosynthesis, which produces oxygen as a byproduct. For photosynthesis to occur effectively, aquatic plants need carbon dioxide (CO₂), which they can absorb from the water.

Since the scientist observed bubbles on Days 1 and 2 but not on Day 3, this suggests that there might have been a depletion of carbon dioxide in the water due to photosynthesis. Therefore, adding d. carbon dioxide would help the plants resume photosynthesis and potentially lead to the reappearance of bubbles.