Marvin blows up a balloon but lets go of it. the air inside is released and the balloon goes up into the air. what best describes what happens?

How many types of rock can form from the rock cycle

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

What does the number 18.9984 represent in the image?