Answer:
a. Earth's crust is thicker than average
Explanation:
The continental crust is the thickest under the mountain ranges. because it is moving downward forming the root.
The thickness is mostly related to the climate and erosion that appears because of the precipitations.
This thickness of the crust is induced by continental collisions or subductions.
Answer:
I'm assuming this is fill-in-the-blank, so
The subunits of nucleic acids contain a base, a five-carbon sugar, and a phosphate group. The subunits of proteins are amino acids. Some of the subunits of proteins must come from food. DNA and RNA are nucleic acids.
These are standard definitions of the properties of nucleic acids versus proteins. These are known as the building blocks of the cell, so it's a good idea to familiarize yourself with the basics!
