Why is the calvin cycle considered a dark reaction?

answer is d i took the test

d: it can proceed in the dark.

Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain

Brass gets discoloured in air because of the presence of which of the following gases in air? a. oxygen b. hydrogen sulphide c. carbon dioxide d. nitrogen

Where would an earthquakes epicenter be in this diagram