Choose the correct option from the following:
Which part of the plant takes in carbon dioxide from the air for photosynthesis?

Options

A. Root hair
B. Stomata
C. Leaf veins
D. Sepals

Answer

To answer the question "Which part of the plant takes in carbon dioxide from the air for photosynthesis?", we can follow these steps:

### Step 1: Understand the Process of Photosynthesis
Photosynthesis is the process by which plants make their food using sunlight, water, and carbon dioxide. The main products of this process are glucose (a simple carbohydrate) and oxygen.

### Step 2: Identify the Source of Carbon Dioxide
For photosynthesis, plants need carbon dioxide, which they obtain from the air.

### Step 3: Determine Where Carbon Dioxide Enters the Plant
Plants have specialized structures that allow them to take in carbon dioxide. These structures are called stomata, which are tiny pores located mainly on the surface of leaves.

### Step 4: Analyze the Options Given
- **Root Hairs**: These are found at the tips of roots and are involved in the absorption of water and minerals, not carbon dioxide.
- **Stomata**: These are the correct structures that allow for the exchange of gases, including the intake of carbon dioxide.
- **Leaf Veins**: These are part of the leaf structure that transports nutrients and water but do not facilitate gas exchange.
- **Sepals**: These are parts of the flower and do not play a role in photosynthesis.

### Step 5: Choose the Correct Option
Based on the analysis, the correct answer is **stomata**.

### Final Answer:
The part of the plant that takes in carbon dioxide from the air for photosynthesis is **stomata**.

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