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| 1. What is the process by which plants make their food? |  |
Ans. The process by which plants make their food is called photosynthesis. During photosynthesis, plants use sunlight, carbon dioxide from the air, and water from the soil to create glucose (a type of sugar) and oxygen. The chlorophyll in the leaves captures sunlight, which helps in converting carbon dioxide and water into food.
| 2. Why do plants need sunlight to make food? | |
Ans. Plants need sunlight for photosynthesis because sunlight provides the energy required to convert carbon dioxide and water into glucose. Without sunlight, plants cannot produce the energy they need to grow and thrive, as photosynthesis would not occur effectively.
| 3. What role does chlorophyll play in photosynthesis? | |
Ans. Chlorophyll is a green pigment found in the leaves of plants that plays a crucial role in photosynthesis. It absorbs sunlight, particularly in the blue and red wavelengths, and uses that energy to initiate the chemical reactions that convert carbon dioxide and water into glucose. Without chlorophyll, plants would not be able to capture sunlight effectively.
| 4. Can plants make their food without water? | |
Ans. No, plants cannot make their food without water. Water is a vital component of photosynthesis, as it is one of the raw materials needed to produce glucose. Without sufficient water, the photosynthesis process is disrupted, and plants may not be able to grow properly or survive.
| 5. What is the importance of oxygen produced by plants during photosynthesis? | |
Ans. The oxygen produced by plants during photosynthesis is essential for life on Earth. It is released into the atmosphere as a byproduct of the photosynthesis process, and it is crucial for the survival of animals and humans, who breathe in oxygen to survive. Additionally, oxygen helps maintain the balance of gases in the atmosphere.
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