It is extremely useful for geologists, because most specimens of a given mineral are very close to the same hardness. ... So, we can conclude that not all the rocks are hard, and the hardness of rocks depends on how the atoms of the rock's minerals are bound to each other and how they are arranged.
It is made from the glycoprotein murein.
Here is the answer that would best complete the given statement above. Biotechnology raises ethical questions, primarily concerning the <span>ways in which knowledge should be used. Hope this is the answer that you are looking for. Have a great day!</span>
Answer:the radiation of the Sun’s electromagnetic waves
Explanation: