Is bread biotic or abiotic? yeast is alive?

Explanation:

Bread is abiotic . Biotic means living or once lived. Abiotic means not living.

Yeast  is alive. It is one-celled and a member of the fungus family, and when you add water to it and give it a little sugar for food, the organism "burps" and releases carbon dioxide—the gas that makes the bag puff out and makes sodas fizzy and bread fluffy.

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.