Standard Science Primary 6 Energy

A plant is placed in a sealed glass jar with an air-conditioned room. What is the main reason the plant might die after several days?

A Lack of carbon dioxide
B Too much light
C Lack of water
D Lack of oxygen
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Worked Solution

Step 1: Photosynthesis requires carbon dioxide, water, and light. Step [2-9]: In a sealed jar, the plant uses up the available carbon dioxide quickly. Step [2-9]: Without CO2, it cannot make food and will eventually die.

Correct answer: Lack of carbon dioxide

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