Question

1. what gas is used during photosynthesis?

summary question

1. what gas is used during photosynthesis?

hydrogen
carbon dioxide
oxygen
nitrogen

1. what happens to the rate of photosynthesis when the amount of light available increases?

the rate of photosynthesis increases
the rate of photosynthesis decreases
the rate of photosynthesis stays the same

1. what happens to the amount of oxygen produced when a plant is exposed to more light?

the amount of oxygen produced stays the same
the amount of oxygen produced decreases
the amount of oxygen produced increases

1. what organic molecule is produced during photosynthesis?

cholesterol
lipase
dna
glucose

1. which step in photosynthesis requires sunlight?

light reaction
dark reaction
calvin cycle
glycolysis

1. which step in photosynthesis converts carbon dioxide into sugar?

light reaction
kreb cycle
calvin cycle
glycolysis

Explanation:

Photosynthesis is a biological process where plants use carbon - dioxide and water, in the presence of sunlight, to produce glucose and oxygen. The gas used during photosynthesis is carbon dioxide.

Answer:

Carbon dioxide (assuming one of the options is carbon dioxide as the question asks for the gas used during photosynthesis and carbon dioxide is taken in by plants for this process)