Baking powder, bicarbonate of soda, eggs (both whites and yolks) and yeast.
yeast, baking powder, water
yeast- biotic. and soda- chemical. and wire whip - mechanical.
yeast and baking soda or baking powder.
vanilla vinegar
Function of raising agents in a muffin?
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air and yeast
oxygen nitrogen carbon dioxide
The three main ingredients in a whisked sponge are eggs, sugar and flour. The flour must be self-raising or plain with the addition of a raising agent. Otherwise the sponge will be flat.
Shortcrust pastry is classically made without raising agents - just plain flour, butter, salt and water.
It makes the product light and fluffy and springy and airy.
If it has any raising agents in it (including self raising flour), you should cook it immediately after mixing. If it does not, it should be ok in the fridge.
Raising agents introduce carbon dioxide gas into foods - by chemical reaction. They're intended to make pastries and bread food more palatable.
the spring.
I'm not sure what you mean by mechanical, but raising agents like baking soda, baking powder, and yeast make foods light and fluffy.
So they are evenly distributed with the flour and will rise evenly when baked.