Answer:
Ionic compounds
Explanation:
Ionic crystals are hard and brittle and have high melting points.
I think the answer is <span>A. encouraging commerce and industry which generated more income to the Prussian kingdoms.</span>
<span>Having standard written research protocols is the correct answer. ;)</span>
Neuroglia<span>, which is sometimes referred to as "</span>glia", are cells that are not neurons but merely support and provide protection for neurons. They are called 'non-neuronal cells' and they exist<span> in the </span>central nervous system<span> (</span>brain<span> and </span>spinal cord<span>) and the </span>peripheral nervous system (nerves outside the brain and the spinal chord).