When muscle cells lack oxygen but need to generate more ATP, what do they convert pyruvate into? X: product
Y: reactant

X: active site
Y: reactant

X: substrate
Y: product

X: substrate
Y: active site

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.