What Am I Riddles

Question: sometimes i hang, sometimes im crusty, sometimes im bloody, and yellow. What am i?

Question: I break down buildings I crumble mountains You can't see me What am I?

Question: "Good morning!" - I appear again! Time for breakfast - I`m long as F*** Its dinner time - I`m crouching down Supper time approaches - I`m on my tippy toes "Good night!" - ...gone again... What am I?

Question: I live in water, but not in the same place. Sometimes it’s drinkable and other times it's not. I am either a hunter or gatherer. I am known for being gentle and easy, but I don’t live long. You will know me by my large eyes and goofy lips. People know me by my slimy body. I can be found in your house or out in the wild but never in between. I am friendly so I will likely be your friend in school. What am I?

Question: What is black when you buy it, red when you use it, and gray when you throw it away?