Contain differnt aquatic creatures
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
Answer:
B
Explanation:
Seems like the only "natural" option. (Something not caused by humans).
Catalysts increases the rate of a reaction by lowering the need for a larger reaction. Basically, the more reactions that are created, the faster the rate of the reactions will become. An example of this is Amylase in our saliva.
Answer:
Proteins contain the elements carbon, hydrogen, and oxygen just as carbohydrates and lipids do, but proteins are the only macronutrient that contains nitrogen. In each amino acid the elements are arranged into a specific conformation around a carbon center.
