<em>Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied</em> <em>Macroscopic hardness is generally characterized by</em> <em>strong intermolecular bonds</em>, <em>but the behavior of solid materials under force is complex; therefore,</em> <em>there are different measurements of hardness</em>: <em>scratch hardness, indentation hardness, and rebound hardness. Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard matter are ceramics, concrete, certain metals, and super hard materials, which can be contrasted with soft matter.</em>
Crystalloids are aquous solution of mineral salts or other water soluble molecules
colloids contains larger insoluble molecules such as blood and gelatin.
hope it helps u....
It was from nuclear fusion. (Sorry if it’s wrong but I’m pretty sure it’s not!)
The answer is b because it's morphological
Protozoans, bacteria, fungi... viruses are not organisms