The “great dying,” which saw 96% of all species extinct, was partially caused by(1 point) an asteroid impact.

lower levels of carbon dioxide in the air.

bacteria producing large amounts of toxic methane.

algae consuming too much oxygen from the ocean.

c

Explanation:

the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

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