The minerals are mostly characterized by the <u>Physical</u><u> </u><u>properties</u><u> </u><u>(</u><u>D</u><u>)</u> which includes the hardness, lustre, density etc. The mineralogists check the detailed view of minerals by using high powered microscope.
The minerals are chemical compounds which are formed as a result of physical processes or geological processes. They mostly occur in crystalline form. <u>For Example:</u> Cacite, Sulfur, Quartz etc
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An easy way to tell is if the trait is or isn’t in every generation. If a trait skips a generation, it’s most likely recessive.
Porosity<span> is a measure of how much of a rock is open space. This space can be between grains or within cracks or cavities of the rock. The substance which has the greatest porosity would be the one that would absorb more water and faster. Hope this helps. Have a nice day.</span>
By knocking at the bend of the knee with a small "hammer". If the leg "spasms" then the superficial reflex is in working condition. Hope this helps :)