Newly oxygenated red blood cells carry oxygen to your body. A pulse oximeter uses light to measure the oxygen saturation level, the percentage of hemoglobin in your red blood cells carrying oxygen. Normal oxygen saturation levels fall between 95 and 99 percent.f you're in good health, normal blood oxygen levels almost always fall within a very predictable range. Medical professionals use two primary measurements for determining your blood oxygen level: oxygen saturation and arterial oxygen. The normal values differ for these measurements.
What two metals are found in the inner and outer cores? Iron and nickel compose the bulk of the inner and outer core of the Earth. The bulk of the inner and outer cores, around 80%, are composed of iron. A substantial amount, aroun â¦ d 10%, is composed of nickel, and the remainder is a mixture of other elements.
There are multiple layers of the Earth. The Earth layers are: the crust, the mantle, the outer core, and the inner core. Some of the layers are considered to parts of the lithosphere and others are part of the asthenosphere.Each layer has its own properties, make-up, and characteristics.uter and Inner Core. There are two very distinct parts of the core: the outer and the inner core. The outer core is 2300 km thick and the inner core is 1200 km thick. The outer core is composed mainly of a nickel-iron alloy, while the inner core is almost entirely composed of iron.