The number of semester credit hours required for an associate degree depends on the college and degree program. In general, an associate degree takes two years full time and represents half the work required for a bachelor's degree.
A dekatherm (dth) is a unit of energy used primarily to measure natural gas, developed in about 1972 by the Texas Eastern Transmission Corporation, a natural gas pipeline company. It is equal to 10 therms or 1,000,000 British thermal units (MMBtu).
Methane is a gas consisting of one carbon atom with four hydrogen atoms attached. The only chemical reaction it is used in is combustion.n Elements and Compounds. Burning methane is a combustion reaction, which is where a hydrocarbon (such as methane) is burnt in the presence of oxygen to form carbon dioxide and water vapor.