Photosynthesis

What is the process by which plants make their own food using sunlight?

• Respiration

• Transpiration

• Photosynthesis

• Germination

What are the tiny openings on plant leaves through which they take in carbon dioxide?

• Roots

• Stomata

• Chloroplasts

• Petals

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Which of the following are essential for plants to perform photosynthesis?

• Sunlight, water, and carbon dioxide

• Oxygen, soil, and nutrients

• Nitrogen, sunlight, and water

• Carbon monoxide, water, and soil

What is the green pigment in plant leaves that helps them make food and gives them their color?

• Carotene

• Anthocyanin

• Chlorophyll

• Xanthophyll

Why are plants often referred to as the "lungs of the world"?

• Because they produce a lot of pollen.

• Because they absorb carbon dioxide and release oxygen.

• Because their roots help filter the air.

• Because they provide shade and cool the environment.