Photochemical smog results from automobile pollutants reacting with ultraviolet light from the sun. <span>Nitrogen oxides released from the automobile are introduced into the atmosphere reacts with sunlight to produce singular oxygen atoms. Oxygen atoms then combine with molecular oxygen to produce ozone which is one of the components of photochemical smog.</span>
It takes about one minute for a blood cell to make a complete circuit of the human body.
DNA only replicates once and that is in Interphase. Why? Because the format of meiosis is IPMATCPMAT. Since Meiosis is the production sex cells, then the process occurs twice. Egg and sperm cells are only one set of chromosomes not two, which makes them Haploid