Pressure builds under the surface of the volcano pushing molten material upwards. At the same time, heat increases from the Earth's interior, flows upward and heats the rock of the volcano. When the temperature and pressure are just right, the rocks melt to form magma which moves toward the surface. When the magma breaches the surface it can erupt violently or non violently depending on what rock was melted and the amount of pressure. The magma is now called lava and will cool into igneous rock. Igneous rocks are classified according to where they are formed Intrusive Rock Extrusive Rock Basaltic Rock Granitic Rock Andesitic Rock Rock that forms below the surface. Characteristic: has large crystals Rock that forms at or just below Earth's surface.
Ways to Keep from Falling Sleep. Â» The simplest way to stay completely alert and feel energetic throughout the day to is get 7 to 9 hours of sleep at night. But if you still have the tendency to fall asleep at odd hours of the day, then try the following tips. Â» If you are looking for the easiest way to stay alert during the afternoons, then drink a glass of cold water. It would simply refresh your body and mind by helping your body to get rid of toxins.
Ruby, the rolling around and not falling back asleep IS what is affecting the efficiency. That's why I'm not alarmed by 10 wakeful moments a night b/c they are each about 1 minute, I fall right back to sleep.