Methane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms. It is one of the most common gases in the universe, as well as on Earth. While it is valued for its energy-production capabilities, methane also has the ability to potentially wreak havoc on the Earth's fragile ecosystems.ethane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms. It is one of the most common gases in the universe, as well as on Earth. While it is valued for its energy-production capabilities, methane also has the ability to potentially wreak havoc on the Earth's fragile ecosystems.
Symptoms of Palindromic rheumatism. The list of signs and symptoms mentioned in various sources for Palindromic rheumatism includes the 6 symptoms listed below: Joint pain. Joint swelling. Joint stiffness. Joint warmth. Skin nodules. Joint redness.
Symptoms of Arrhythmia and Diagnostic Path. Arrhythmias may cause a range of symptoms or no symptoms at all. The most common symptoms are. 1  PALPITATIONS, which feel like the heart is thumping or âskippingâ a beat. 2  weakness, lightheadedness, or fainting.3  shortness of breath with exertion (DYSPNEA).ymptoms of Arrhythmia and Diagnostic Path. Arrhythmias may cause a range of symptoms or no symptoms at all. The most common symptoms are. 1  PALPITATIONS, which feel like the heart is thumping or âskippingâ a beat. 2  weakness, lightheadedness, or fainting.