Photosynthesis involves a chemical called _____.

pistil
pigment
stomata
chlorophyll
phloem

chlorophyll

Photosynthesis involves taking ______ dioxide from the air and combining with water.

silicon
nitrogen
sulfur
fluorine
carbon

carbon

The correct answer is chlorophyll.

To arrive at this answer, one can consider the process of photosynthesis and the role of chlorophyll in it.

Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, water, and carbon dioxide into glucose (a form of sugar) and oxygen. It is a crucial process for all life on Earth, as it provides oxygen and serves as the foundation of the food chain.

During photosynthesis, plants use a pigment called chlorophyll to capture the energy from sunlight. Chlorophyll is a green pigment found in the chloroplasts of plant cells. It absorbs light energy from the sun and uses it to convert water and carbon dioxide into glucose and oxygen.

Therefore, the chemical involved in photosynthesis is chlorophyll.