Answer:
Galena
Explanation:
Galena usually occurs in cubic crystals. If you hit a specimen of galena with a hammer it will shatter into small perfect cubic crystals. It has a metallic luster and a black to dark gray color and streak. Galena has a hardness of about 2.5 on the Mohs hardness scale which is about as hard as your fingernail.
B. The full symptom list of Panic Disorder is:<span> Shortness of breath or hyperventilation, Heart palpitations or a racing heart, Chest pain or discomfort, Trembling or shaking, Choking feeling, Feeling unreal or detached from your surroundings, Sweating, Nausea or upset stomach, Feeling dizzy, light-headed or fainting, Numbness or tingling sensations, Hot or cold flashes<span> and Fear of dying, losing control or going crazy</span></span>
Different genes control the development of different characteristics of an organism.
I believe the correct answer from the choices listed above is option A. Stretching that uses neuromuscular reflexes to gain further stretching of the muscle is called PNF stretching. PNF stands for <span>Proprioceptive Neuromuscular Facilitation. Hope this helps. Have a nice day.</span>
