Please help ASAP. If you know the answer to few of the parts then tell me the answer to the part you know with explanation and also type the letter of which part you solved

Why does a cake rise when you bake it? ♡

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.