If grapes, which are rich in sugar, and yeast were sealed in a container without oxygen and mixed together, a gas and a liquid will form. What liquid will form in the container?

As the yeast eats the sugar, it releases a gas called carbon dioxide. The gas fills the bottle and then fills the balloon as more gas is created. Each bit of yeast makes tiny gas bubbles and that puts millions of bubbles (holes) in our bread before it gets baked.

Explanation:

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weathering is the answer.