â¢ One plate is pushed beneath the other, or equivalent description. â¢ A trench may be formed at the subduction zone. (ii) Explain how subduction leads to volcanic activity. (2 points: 1 point for a correct explanation of one plate being pushed down and melted and 1. point for a correct explanation of molten material /magma rising to the surface near the zone)
Symptoms of atrial fibrillation occur when the upper chambers of the heart (atria) beat in a disorganized fashion. Atrial fibrillation is a type of arrhythmia. Characteristic symptoms include shortness of breath, palpitations, and lightheadedness.
10 Signs of Fibromyalgia. 10 Signs of Fibromyalgia. Fibromyalgia is a musculoskeletal condition that causes widespread chronic pain and numerous other symptoms, the combination of which have earned it the medical appellation of a syndrome, i.e. Fibromyalgia Syndrome. It affects primarily women but men and children are not spared.