Leg Paralysis in Dogs. Also see professional content regarding limb paralysis. Paralysis of a leg often results from damage to the peripheral spinal nerves. Paralysis of a front leg is usually associated with injury to the nerve roots in the neck or shoulder, or injury to the radial, median, or ulnar nerve in the leg. Paralysis of a hind leg is usually associated with injury to the nerve roots in the lower back or tailbone, or the femoral, sciatic, peroneal, or tibial nerve in the leg. Paralysis of a leg may be temporary or permanent.
For the best answers, search on this site https://shorturl.im/v0RKr. Nitrogen (N2) is the most abundant gas in the Earth's atmosphere having percent volume of 78.8 compare to Oxygen 20.95 %, which falls on the second place after Nitrogen. All other gases including water vapor, CO2, helium, etc. are present in varying trace amounts a few hundredths of a percent or much less.
Trace Gases. Most of our atmosphere is made up of nitrogen (78% by volume) and oxygen (21% by volume). The remaining 1% of the atmospheric gases are known as trace gases because they are present in such small concentrations. The most abundant of the trace gases is the noble gas argon (approximately 1% by volume). Noble gases, which also include neon, helium, krypton and xenon, are very inert and do not generally engage in any chemical transformation within the atmosphere.