the answer is c. chemical bonding bc its the attraction between atoms.
Answer:
b just go with your gut 54
One-third of all waste in landfills are waste products. They are of no use. The rest of them is methane and other waste. Time to time methane is removed, for using it for different purposes. In landfills, the waste is buried and fresh waste is added to it every day. By anaerobic process, the waste is broken down into methane and other products.
In between the parietal and visceral pericardial layers there is a potential space called the pericardial cavity, which contains a supply of lubricating serous fluid known as the pericardial fluid. The epicardium is the layer immediately outside of the heart muscle proper (the myocardium). ;)